64958840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1931}}^1$

素因数の和:2000

約数の個数: 48

約数和(自身を含む): 151449480

約数和(自身を除く): 86490640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 841, 1160, 1682, 1931, 3364, 3862, 4205, 6728, 7724, 8410, 9655, 15448, 16820, 19310, 33640, 38620, 55999, 77240, 111998, 223996, 279995, 447992, 559990, 1119980, 1623971, 2239960, 3247942, 6495884, 8119855, 12991768, 16239710, 32479420, 64958840]

約数ペア:

[(1, 64958840), (2, 32479420), (4, 16239710), (5, 12991768), (8, 8119855), (10, 6495884), (20, 3247942), (29, 2239960), (40, 1623971), (58, 1119980), (116, 559990), (145, 447992), (232, 279995), (290, 223996), (580, 111998), (841, 77240), (1160, 55999), (1682, 38620), (1931, 33640), (3364, 19310), (3862, 16820), (4205, 15448), (6728, 9655), (7724, 8410)]