20681764080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2779807}}^1$

素因数の和:2779854

約数の個数: 80

約数和(自身を含む): 66181668864

約数和(自身を除く): 45499904784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 2779807, 5559614, 8339421, 11119228, 13899035, 16678842, 22238456, 27798070, 33357684, 41697105, 44476912, 55596140, 66715368, 83394210, 86174017, 111192280, 133430736, 166788420, 172348034, 222384560, 258522051, 333576840, 344696068, 430870085, 517044102, 667153680, 689392136, 861740170, 1034088204, 1292610255, 1378784272, 1723480340, 2068176408, 2585220510, 3446960680, 4136352816, 5170441020, 6893921360, 10340882040, 20681764080]

約数ペア:

[(1, 20681764080), (2, 10340882040), (3, 6893921360), (4, 5170441020), (5, 4136352816), (6, 3446960680), (8, 2585220510), (10, 2068176408), (12, 1723480340), (15, 1378784272), (16, 1292610255), (20, 1034088204), (24, 861740170), (30, 689392136), (31, 667153680), (40, 517044102), (48, 430870085), (60, 344696068), (62, 333576840), (80, 258522051), (93, 222384560), (120, 172348034), (124, 166788420), (155, 133430736), (186, 111192280), (240, 86174017), (248, 83394210), (310, 66715368), (372, 55596140), (465, 44476912), (496, 41697105), (620, 33357684), (744, 27798070), (930, 22238456), (1240, 16678842), (1488, 13899035), (1860, 11119228), (2480, 8339421), (3720, 5559614), (7440, 2779807)]