520001000

素因数分解:

$2^3\times 5^3\times {\mathrm{331}}^1\times {\mathrm{1571}}^1$

素因数の和:1923

約数の個数: 64

約数和(自身を含む): 1221255360

約数和(自身を除く): 701254360

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 331, 500, 662, 1000, 1324, 1571, 1655, 2648, 3142, 3310, 6284, 6620, 7855, 8275, 12568, 13240, 15710, 16550, 31420, 33100, 39275, 41375, 62840, 66200, 78550, 82750, 157100, 165500, 196375, 314200, 331000, 392750, 520001, 785500, 1040002, 1571000, 2080004, 2600005, 4160008, 5200010, 10400020, 13000025, 20800040, 26000050, 52000100, 65000125, 104000200, 130000250, 260000500, 520001000]

約数ペア:

[(1, 520001000), (2, 260000500), (4, 130000250), (5, 104000200), (8, 65000125), (10, 52000100), (20, 26000050), (25, 20800040), (40, 13000025), (50, 10400020), (100, 5200010), (125, 4160008), (200, 2600005), (250, 2080004), (331, 1571000), (500, 1040002), (662, 785500), (1000, 520001), (1324, 392750), (1571, 331000), (1655, 314200), (2648, 196375), (3142, 165500), (3310, 157100), (6284, 82750), (6620, 78550), (7855, 66200), (8275, 62840), (12568, 41375), (13240, 39275), (15710, 33100), (16550, 31420)]