28506240

素因数分解:

$2^7\times 3^2\times 5^1\times 7^2\times {\mathrm{101}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 115640460

約数和(自身を除く): 87134220

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 101, 105, 112, 120, 126, 128, 140, 144, 147, 160, 168, 180, 192, 196, 202, 210, 224, 240, 245, 252, 280, 288, 294, 303, 315, 320, 336, 360, 384, 392, 404, 420, 441, 448, 480, 490, 504, 505, 560, 576, 588, 606, 630, 640, 672, 707, 720, 735, 784, 808, 840, 882, 896, 909, 960, 980, 1008, 1010, 1120, 1152, 1176, 1212, 1260, 1344, 1414, 1440, 1470, 1515, 1568, 1616, 1680, 1764, 1818, 1920, 1960, 2016, 2020, 2121, 2205, 2240, 2352, 2424, 2520, 2688, 2828, 2880, 2940, 3030, 3136, 3232, 3360, 3528, 3535, 3636, 3920, 4032, 4040, 4242, 4410, 4480, 4545, 4704, 4848, 4949, 5040, 5656, 5760, 5880, 6060, 6272, 6363, 6464, 6720, 7056, 7070, 7272, 7840, 8064, 8080, 8484, 8820, 9090, 9408, 9696, 9898, 10080, 10605, 11312, 11760, 12120, 12726, 12928, 13440, 14112, 14140, 14544, 14847, 15680, 16160, 16968, 17640, 18180, 18816, 19392, 19796, 20160, 21210, 22624, 23520, 24240, 24745, 25452, 28224, 28280, 29088, 29694, 31360, 31815, 32320, 33936, 35280, 36360, 38784, 39592, 40320, 42420, 44541, 45248, 47040, 48480, 49490, 50904, 56448, 56560, 58176, 59388, 63630, 64640, 67872, 70560, 72720, 74235, 79184, 84840, 89082, 90496, 94080, 96960, 98980, 101808, 113120, 116352, 118776, 127260, 135744, 141120, 145440, 148470, 158368, 169680, 178164, 193920, 197960, 203616, 222705, 226240, 237552, 254520, 271488, 282240, 290880, 296940, 316736, 339360, 356328, 395920, 407232, 445410, 452480, 475104, 509040, 581760, 593880, 633472, 678720, 712656, 791840, 814464, 890820, 950208, 1018080, 1187760, 1357440, 1425312, 1583680, 1781640, 1900416, 2036160, 2375520, 2850624, 3167360, 3563280, 4072320, 4751040, 5701248, 7126560, 9502080, 14253120, 28506240]

約数ペア:

[(1, 28506240), (2, 14253120), (3, 9502080), (4, 7126560), (5, 5701248), (6, 4751040), (7, 4072320), (8, 3563280), (9, 3167360), (10, 2850624), (12, 2375520), (14, 2036160), (15, 1900416), (16, 1781640), (18, 1583680), (20, 1425312), (21, 1357440), (24, 1187760), (28, 1018080), (30, 950208), (32, 890820), (35, 814464), (36, 791840), (40, 712656), (42, 678720), (45, 633472), (48, 593880), (49, 581760), (56, 509040), (60, 475104), (63, 452480), (64, 445410), (70, 407232), (72, 395920), (80, 356328), (84, 339360), (90, 316736), (96, 296940), (98, 290880), (101, 282240), (105, 271488), (112, 254520), (120, 237552), (126, 226240), (128, 222705), (140, 203616), (144, 197960), (147, 193920), (160, 178164), (168, 169680), (180, 158368), (192, 148470), (196, 145440), (202, 141120), (210, 135744), (224, 127260), (240, 118776), (245, 116352), (252, 113120), (280, 101808), (288, 98980), (294, 96960), (303, 94080), (315, 90496), (320, 89082), (336, 84840), (360, 79184), (384, 74235), (392, 72720), (404, 70560), (420, 67872), (441, 64640), (448, 63630), (480, 59388), (490, 58176), (504, 56560), (505, 56448), (560, 50904), (576, 49490), (588, 48480), (606, 47040), (630, 45248), (640, 44541), (672, 42420), (707, 40320), (720, 39592), (735, 38784), (784, 36360), (808, 35280), (840, 33936), (882, 32320), (896, 31815), (909, 31360), (960, 29694), (980, 29088), (1008, 28280), (1010, 28224), (1120, 25452), (1152, 24745), (1176, 24240), (1212, 23520), (1260, 22624), (1344, 21210), (1414, 20160), (1440, 19796), (1470, 19392), (1515, 18816), (1568, 18180), (1616, 17640), (1680, 16968), (1764, 16160), (1818, 15680), (1920, 14847), (1960, 14544), (2016, 14140), (2020, 14112), (2121, 13440), (2205, 12928), (2240, 12726), (2352, 12120), (2424, 11760), (2520, 11312), (2688, 10605), (2828, 10080), (2880, 9898), (2940, 9696), (3030, 9408), (3136, 9090), (3232, 8820), (3360, 8484), (3528, 8080), (3535, 8064), (3636, 7840), (3920, 7272), (4032, 7070), (4040, 7056), (4242, 6720), (4410, 6464), (4480, 6363), (4545, 6272), (4704, 6060), (4848, 5880), (4949, 5760), (5040, 5656)]