20406914060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{195731}}^1$

素因数の和:196154

約数の個数: 48

約数和(自身を含む): 46266347232

約数和(自身を除く): 25859433172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 401, 802, 1604, 2005, 4010, 5213, 8020, 10426, 20852, 26065, 52130, 104260, 195731, 391462, 782924, 978655, 1957310, 2544503, 3914620, 5089006, 10178012, 12722515, 25445030, 50890060, 78488131, 156976262, 313952524, 392440655, 784881310, 1020345703, 1569762620, 2040691406, 4081382812, 5101728515, 10203457030, 20406914060]

約数ペア:

[(1, 20406914060), (2, 10203457030), (4, 5101728515), (5, 4081382812), (10, 2040691406), (13, 1569762620), (20, 1020345703), (26, 784881310), (52, 392440655), (65, 313952524), (130, 156976262), (260, 78488131), (401, 50890060), (802, 25445030), (1604, 12722515), (2005, 10178012), (4010, 5089006), (5213, 3914620), (8020, 2544503), (10426, 1957310), (20852, 978655), (26065, 782924), (52130, 391462), (104260, 195731)]