1217990020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{8233}}^1$

素因数の和:8824

約数の個数: 48

約数和(自身を含む): 2759707440

約数和(自身を除く): 1541717420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 569, 1138, 2276, 2845, 5690, 7397, 8233, 11380, 14794, 16466, 29588, 32932, 36985, 41165, 73970, 82330, 107029, 147940, 164660, 214058, 428116, 535145, 1070290, 2140580, 4684577, 9369154, 18738308, 23422885, 46845770, 60899501, 93691540, 121799002, 243598004, 304497505, 608995010, 1217990020]

約数ペア:

[(1, 1217990020), (2, 608995010), (4, 304497505), (5, 243598004), (10, 121799002), (13, 93691540), (20, 60899501), (26, 46845770), (52, 23422885), (65, 18738308), (130, 9369154), (260, 4684577), (569, 2140580), (1138, 1070290), (2276, 535145), (2845, 428116), (5690, 214058), (7397, 164660), (8233, 147940), (11380, 107029), (14794, 82330), (16466, 73970), (29588, 41165), (32932, 36985)]