640616736

素因数分解:

$2^5\times 3^1\times {\mathrm{31}}^1\times {\mathrm{215261}}^1$

素因数の和:215305

約数の個数: 48

約数和(自身を含む): 1735872768

約数和(自身を除く): 1095256032

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 93, 96, 124, 186, 248, 372, 496, 744, 992, 1488, 2976, 215261, 430522, 645783, 861044, 1291566, 1722088, 2583132, 3444176, 5166264, 6673091, 6888352, 10332528, 13346182, 20019273, 20665056, 26692364, 40038546, 53384728, 80077092, 106769456, 160154184, 213538912, 320308368, 640616736]

約数ペア:

[(1, 640616736), (2, 320308368), (3, 213538912), (4, 160154184), (6, 106769456), (8, 80077092), (12, 53384728), (16, 40038546), (24, 26692364), (31, 20665056), (32, 20019273), (48, 13346182), (62, 10332528), (93, 6888352), (96, 6673091), (124, 5166264), (186, 3444176), (248, 2583132), (372, 1722088), (496, 1291566), (744, 861044), (992, 645783), (1488, 430522), (2976, 215261)]