64623880

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 149688000

約数和(自身を除く): 85064120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 139, 197, 236, 278, 295, 394, 472, 556, 590, 695, 788, 985, 1112, 1180, 1390, 1576, 1970, 2360, 2780, 3940, 5560, 7880, 8201, 11623, 16402, 23246, 27383, 32804, 41005, 46492, 54766, 58115, 65608, 82010, 92984, 109532, 116230, 136915, 164020, 219064, 232460, 273830, 328040, 464920, 547660, 1095320, 1615597, 3231194, 6462388, 8077985, 12924776, 16155970, 32311940, 64623880]

約数ペア:

[(1, 64623880), (2, 32311940), (4, 16155970), (5, 12924776), (8, 8077985), (10, 6462388), (20, 3231194), (40, 1615597), (59, 1095320), (118, 547660), (139, 464920), (197, 328040), (236, 273830), (278, 232460), (295, 219064), (394, 164020), (472, 136915), (556, 116230), (590, 109532), (695, 92984), (788, 82010), (985, 65608), (1112, 58115), (1180, 54766), (1390, 46492), (1576, 41005), (1970, 32804), (2360, 27383), (2780, 23246), (3940, 16402), (5560, 11623), (7880, 8201)]