289326420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22639}}^1$

素因数の和:22725

約数の個数: 72

約数和(自身を含む): 890023680

約数和(自身を除く): 600697260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22639, 45278, 67917, 90556, 113195, 135834, 203751, 226390, 271668, 339585, 407502, 452780, 679170, 815004, 1018755, 1358340, 1607369, 2037510, 3214738, 4075020, 4822107, 6429476, 8036845, 9644214, 14466321, 16073690, 19288428, 24110535, 28932642, 32147380, 48221070, 57865284, 72331605, 96442140, 144663210, 289326420]

約数ペア:

[(1, 289326420), (2, 144663210), (3, 96442140), (4, 72331605), (5, 57865284), (6, 48221070), (9, 32147380), (10, 28932642), (12, 24110535), (15, 19288428), (18, 16073690), (20, 14466321), (30, 9644214), (36, 8036845), (45, 6429476), (60, 4822107), (71, 4075020), (90, 3214738), (142, 2037510), (180, 1607369), (213, 1358340), (284, 1018755), (355, 815004), (426, 679170), (639, 452780), (710, 407502), (852, 339585), (1065, 271668), (1278, 226390), (1420, 203751), (2130, 135834), (2556, 113195), (3195, 90556), (4260, 67917), (6390, 45278), (12780, 22639)]