20121155080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{943769}}^1$

素因数の和:943834

約数の個数: 64

約数和(自身を含む): 49944308400

約数和(自身を除く): 29823153320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4264, 5330, 10660, 21320, 943769, 1887538, 3775076, 4718845, 7550152, 9437690, 12268997, 18875380, 24537994, 37750760, 38694529, 49075988, 61344985, 77389058, 98151976, 122689970, 154778116, 193472645, 245379940, 309556232, 386945290, 490759880, 503028877, 773890580, 1006057754, 1547781160, 2012115508, 2515144385, 4024231016, 5030288770, 10060577540, 20121155080]

約数ペア:

[(1, 20121155080), (2, 10060577540), (4, 5030288770), (5, 4024231016), (8, 2515144385), (10, 2012115508), (13, 1547781160), (20, 1006057754), (26, 773890580), (40, 503028877), (41, 490759880), (52, 386945290), (65, 309556232), (82, 245379940), (104, 193472645), (130, 154778116), (164, 122689970), (205, 98151976), (260, 77389058), (328, 61344985), (410, 49075988), (520, 38694529), (533, 37750760), (820, 24537994), (1066, 18875380), (1640, 12268997), (2132, 9437690), (2665, 7550152), (4264, 4718845), (5330, 3775076), (10660, 1887538), (21320, 943769)]