66400940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1471}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 145657344

約数和(自身を除く): 79256404

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 610, 740, 1220, 1471, 2257, 2942, 4514, 5884, 7355, 9028, 11285, 14710, 22570, 29420, 45140, 54427, 89731, 108854, 179462, 217708, 272135, 358924, 448655, 544270, 897310, 1088540, 1794620, 3320047, 6640094, 13280188, 16600235, 33200470, 66400940]

約数ペア:

[(1, 66400940), (2, 33200470), (4, 16600235), (5, 13280188), (10, 6640094), (20, 3320047), (37, 1794620), (61, 1088540), (74, 897310), (122, 544270), (148, 448655), (185, 358924), (244, 272135), (305, 217708), (370, 179462), (610, 108854), (740, 89731), (1220, 54427), (1471, 45140), (2257, 29420), (2942, 22570), (4514, 14710), (5884, 11285), (7355, 9028)]