199888520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1429}}^1$

素因数の和:1722

約数の個数: 64

約数和(自身を含む): 486486000

約数和(自身を除く): 286597480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 269, 520, 538, 1076, 1345, 1429, 2152, 2690, 2858, 3497, 5380, 5716, 6994, 7145, 10760, 11432, 13988, 14290, 17485, 18577, 27976, 28580, 34970, 37154, 57160, 69940, 74308, 92885, 139880, 148616, 185770, 371540, 384401, 743080, 768802, 1537604, 1922005, 3075208, 3844010, 4997213, 7688020, 9994426, 15376040, 19988852, 24986065, 39977704, 49972130, 99944260, 199888520]

約数ペア:

[(1, 199888520), (2, 99944260), (4, 49972130), (5, 39977704), (8, 24986065), (10, 19988852), (13, 15376040), (20, 9994426), (26, 7688020), (40, 4997213), (52, 3844010), (65, 3075208), (104, 1922005), (130, 1537604), (260, 768802), (269, 743080), (520, 384401), (538, 371540), (1076, 185770), (1345, 148616), (1429, 139880), (2152, 92885), (2690, 74308), (2858, 69940), (3497, 57160), (5380, 37154), (5716, 34970), (6994, 28580), (7145, 27976), (10760, 18577), (11432, 17485), (13988, 14290)]