15780240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:158

約数の個数: 240

約数和(自身を含む): 63138816

約数和(自身を除く): 47358576

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 101, 105, 112, 120, 124, 126, 140, 144, 155, 168, 180, 186, 202, 210, 217, 240, 248, 252, 279, 280, 303, 310, 315, 336, 360, 372, 404, 420, 434, 465, 496, 504, 505, 558, 560, 606, 620, 630, 651, 707, 720, 744, 808, 840, 868, 909, 930, 1008, 1010, 1085, 1116, 1212, 1240, 1260, 1302, 1395, 1414, 1488, 1515, 1616, 1680, 1736, 1818, 1860, 1953, 2020, 2121, 2170, 2232, 2424, 2480, 2520, 2604, 2790, 2828, 3030, 3131, 3255, 3472, 3535, 3636, 3720, 3906, 4040, 4242, 4340, 4464, 4545, 4848, 5040, 5208, 5580, 5656, 6060, 6262, 6363, 6510, 7070, 7272, 7440, 7812, 8080, 8484, 8680, 9090, 9393, 9765, 10416, 10605, 11160, 11312, 12120, 12524, 12726, 13020, 14140, 14544, 15624, 15655, 16968, 17360, 18180, 18786, 19530, 21210, 21917, 22320, 24240, 25048, 25452, 26040, 28179, 28280, 31248, 31310, 31815, 33936, 36360, 37572, 39060, 42420, 43834, 46965, 50096, 50904, 52080, 56358, 56560, 62620, 63630, 65751, 72720, 75144, 78120, 84840, 87668, 93930, 101808, 109585, 112716, 125240, 127260, 131502, 140895, 150288, 156240, 169680, 175336, 187860, 197253, 219170, 225432, 250480, 254520, 263004, 281790, 328755, 350672, 375720, 394506, 438340, 450864, 509040, 526008, 563580, 657510, 751440, 789012, 876680, 986265, 1052016, 1127160, 1315020, 1578024, 1753360, 1972530, 2254320, 2630040, 3156048, 3945060, 5260080, 7890120, 15780240]

約数ペア:

[(1, 15780240), (2, 7890120), (3, 5260080), (4, 3945060), (5, 3156048), (6, 2630040), (7, 2254320), (8, 1972530), (9, 1753360), (10, 1578024), (12, 1315020), (14, 1127160), (15, 1052016), (16, 986265), (18, 876680), (20, 789012), (21, 751440), (24, 657510), (28, 563580), (30, 526008), (31, 509040), (35, 450864), (36, 438340), (40, 394506), (42, 375720), (45, 350672), (48, 328755), (56, 281790), (60, 263004), (62, 254520), (63, 250480), (70, 225432), (72, 219170), (80, 197253), (84, 187860), (90, 175336), (93, 169680), (101, 156240), (105, 150288), (112, 140895), (120, 131502), (124, 127260), (126, 125240), (140, 112716), (144, 109585), (155, 101808), (168, 93930), (180, 87668), (186, 84840), (202, 78120), (210, 75144), (217, 72720), (240, 65751), (248, 63630), (252, 62620), (279, 56560), (280, 56358), (303, 52080), (310, 50904), (315, 50096), (336, 46965), (360, 43834), (372, 42420), (404, 39060), (420, 37572), (434, 36360), (465, 33936), (496, 31815), (504, 31310), (505, 31248), (558, 28280), (560, 28179), (606, 26040), (620, 25452), (630, 25048), (651, 24240), (707, 22320), (720, 21917), (744, 21210), (808, 19530), (840, 18786), (868, 18180), (909, 17360), (930, 16968), (1008, 15655), (1010, 15624), (1085, 14544), (1116, 14140), (1212, 13020), (1240, 12726), (1260, 12524), (1302, 12120), (1395, 11312), (1414, 11160), (1488, 10605), (1515, 10416), (1616, 9765), (1680, 9393), (1736, 9090), (1818, 8680), (1860, 8484), (1953, 8080), (2020, 7812), (2121, 7440), (2170, 7272), (2232, 7070), (2424, 6510), (2480, 6363), (2520, 6262), (2604, 6060), (2790, 5656), (2828, 5580), (3030, 5208), (3131, 5040), (3255, 4848), (3472, 4545), (3535, 4464), (3636, 4340), (3720, 4242), (3906, 4040)]