644015979

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 990412800

約数和(自身を除く): 346396821

約数列:

[1, 3, 9, 31, 61, 79, 93, 183, 237, 279, 479, 549, 711, 1437, 1891, 2449, 4311, 4819, 5673, 7347, 14457, 14849, 17019, 22041, 29219, 37841, 43371, 44547, 87657, 113523, 133641, 149389, 262971, 340569, 448167, 905789, 1173071, 1344501, 2308301, 2717367, 3519213, 6924903, 8152101, 10557639, 20774709, 71557331, 214671993, 644015979]

約数ペア:

[(1, 644015979), (3, 214671993), (9, 71557331), (31, 20774709), (61, 10557639), (79, 8152101), (93, 6924903), (183, 3519213), (237, 2717367), (279, 2308301), (479, 1344501), (549, 1173071), (711, 905789), (1437, 448167), (1891, 340569), (2449, 262971), (4311, 149389), (4819, 133641), (5673, 113523), (7347, 87657), (14457, 44547), (14849, 43371), (17019, 37841), (22041, 29219)]