1781640

素因数分解:

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

素因数の和:132

約数の個数: 144

約数和(自身を含む): 6802380

約数和(自身を除く): 5020740

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 101, 105, 120, 126, 140, 147, 168, 180, 196, 202, 210, 245, 252, 280, 294, 303, 315, 360, 392, 404, 420, 441, 490, 504, 505, 588, 606, 630, 707, 735, 808, 840, 882, 909, 980, 1010, 1176, 1212, 1260, 1414, 1470, 1515, 1764, 1818, 1960, 2020, 2121, 2205, 2424, 2520, 2828, 2940, 3030, 3528, 3535, 3636, 4040, 4242, 4410, 4545, 4949, 5656, 5880, 6060, 6363, 7070, 7272, 8484, 8820, 9090, 9898, 10605, 12120, 12726, 14140, 14847, 16968, 17640, 18180, 19796, 21210, 24745, 25452, 28280, 29694, 31815, 36360, 39592, 42420, 44541, 49490, 50904, 59388, 63630, 74235, 84840, 89082, 98980, 118776, 127260, 148470, 178164, 197960, 222705, 254520, 296940, 356328, 445410, 593880, 890820, 1781640]

約数ペア:

[(1, 1781640), (2, 890820), (3, 593880), (4, 445410), (5, 356328), (6, 296940), (7, 254520), (8, 222705), (9, 197960), (10, 178164), (12, 148470), (14, 127260), (15, 118776), (18, 98980), (20, 89082), (21, 84840), (24, 74235), (28, 63630), (30, 59388), (35, 50904), (36, 49490), (40, 44541), (42, 42420), (45, 39592), (49, 36360), (56, 31815), (60, 29694), (63, 28280), (70, 25452), (72, 24745), (84, 21210), (90, 19796), (98, 18180), (101, 17640), (105, 16968), (120, 14847), (126, 14140), (140, 12726), (147, 12120), (168, 10605), (180, 9898), (196, 9090), (202, 8820), (210, 8484), (245, 7272), (252, 7070), (280, 6363), (294, 6060), (303, 5880), (315, 5656), (360, 4949), (392, 4545), (404, 4410), (420, 4242), (441, 4040), (490, 3636), (504, 3535), (505, 3528), (588, 3030), (606, 2940), (630, 2828), (707, 2520), (735, 2424), (808, 2205), (840, 2121), (882, 2020), (909, 1960), (980, 1818), (1010, 1764), (1176, 1515), (1212, 1470), (1260, 1414)]