1399340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 3166464

約数和(自身を除く): 1767124

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 61, 62, 74, 122, 124, 148, 155, 185, 244, 305, 310, 370, 610, 620, 740, 1147, 1220, 1891, 2257, 2294, 3782, 4514, 4588, 5735, 7564, 9028, 9455, 11285, 11470, 18910, 22570, 22940, 37820, 45140, 69967, 139934, 279868, 349835, 699670, 1399340]

約数ペア:

[(1, 1399340), (2, 699670), (4, 349835), (5, 279868), (10, 139934), (20, 69967), (31, 45140), (37, 37820), (61, 22940), (62, 22570), (74, 18910), (122, 11470), (124, 11285), (148, 9455), (155, 9028), (185, 7564), (244, 5735), (305, 4588), (310, 4514), (370, 3782), (610, 2294), (620, 2257), (740, 1891), (1147, 1220)]