8039980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 19495728

約数和(自身を除く): 11455748

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 107, 130, 170, 214, 221, 260, 289, 340, 428, 442, 535, 578, 884, 1070, 1105, 1156, 1391, 1445, 1819, 2140, 2210, 2782, 2890, 3638, 3757, 4420, 5564, 5780, 6955, 7276, 7514, 9095, 13910, 15028, 18190, 18785, 23647, 27820, 30923, 36380, 37570, 47294, 61846, 75140, 94588, 118235, 123692, 154615, 236470, 309230, 401999, 472940, 618460, 803998, 1607996, 2009995, 4019990, 8039980]

約数ペア:

[(1, 8039980), (2, 4019990), (4, 2009995), (5, 1607996), (10, 803998), (13, 618460), (17, 472940), (20, 401999), (26, 309230), (34, 236470), (52, 154615), (65, 123692), (68, 118235), (85, 94588), (107, 75140), (130, 61846), (170, 47294), (214, 37570), (221, 36380), (260, 30923), (289, 27820), (340, 23647), (428, 18785), (442, 18190), (535, 15028), (578, 13910), (884, 9095), (1070, 7514), (1105, 7276), (1156, 6955), (1391, 5780), (1445, 5564), (1819, 4420), (2140, 3757), (2210, 3638), (2782, 2890)]