400385460

素因数分解:

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

素因数の和:215304

約数の個数: 48

約数和(自身を含む): 1157248512

約数和(自身を除く): 756863052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 215261, 430522, 645783, 861044, 1076305, 1291566, 2152610, 2583132, 3228915, 4305220, 6457830, 6673091, 12915660, 13346182, 20019273, 26692364, 33365455, 40038546, 66730910, 80077092, 100096365, 133461820, 200192730, 400385460]

約数ペア:

[(1, 400385460), (2, 200192730), (3, 133461820), (4, 100096365), (5, 80077092), (6, 66730910), (10, 40038546), (12, 33365455), (15, 26692364), (20, 20019273), (30, 13346182), (31, 12915660), (60, 6673091), (62, 6457830), (93, 4305220), (124, 3228915), (155, 2583132), (186, 2152610), (310, 1291566), (372, 1076305), (465, 861044), (620, 645783), (930, 430522), (1860, 215261)]