638989828

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 1181703600

約数和(自身を除く): 542713772

約数列:

[1, 2, 4, 29, 58, 97, 109, 116, 194, 218, 388, 436, 521, 1042, 2084, 2813, 3161, 5626, 6322, 10573, 11252, 12644, 15109, 21146, 30218, 42292, 50537, 56789, 60436, 101074, 113578, 202148, 227156, 306617, 613234, 1226468, 1465573, 1646881, 2931146, 3293762, 5508533, 5862292, 6587524, 11017066, 22034132, 159747457, 319494914, 638989828]

約数ペア:

[(1, 638989828), (2, 319494914), (4, 159747457), (29, 22034132), (58, 11017066), (97, 6587524), (109, 5862292), (116, 5508533), (194, 3293762), (218, 2931146), (388, 1646881), (436, 1465573), (521, 1226468), (1042, 613234), (2084, 306617), (2813, 227156), (3161, 202148), (5626, 113578), (6322, 101074), (10573, 60436), (11252, 56789), (12644, 50537), (15109, 42292), (21146, 30218)]