428987380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{4451}}^1$

素因数の和:4600

約数の個数: 48

約数和(自身を含む): 927440640

約数和(自身を除く): 498453260

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 158, 244, 305, 316, 395, 610, 790, 1220, 1580, 4451, 4819, 8902, 9638, 17804, 19276, 22255, 24095, 44510, 48190, 89020, 96380, 271511, 351629, 543022, 703258, 1086044, 1357555, 1406516, 1758145, 2715110, 3516290, 5430220, 7032580, 21449369, 42898738, 85797476, 107246845, 214493690, 428987380]

約数ペア:

[(1, 428987380), (2, 214493690), (4, 107246845), (5, 85797476), (10, 42898738), (20, 21449369), (61, 7032580), (79, 5430220), (122, 3516290), (158, 2715110), (244, 1758145), (305, 1406516), (316, 1357555), (395, 1086044), (610, 703258), (790, 543022), (1220, 351629), (1580, 271511), (4451, 96380), (4819, 89020), (8902, 48190), (9638, 44510), (17804, 24095), (19276, 22255)]