20249501480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{949789}}^1$

素因数の和:949854

約数の個数: 64

約数和(自身を含む): 50262886800

約数和(自身を除く): 30013385320

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, 949789, 1899578, 3799156, 4748945, 7598312, 9497890, 12347257, 18995780, 24694514, 37991560, 38941349, 49389028, 61736285, 77882698, 98778056, 123472570, 155765396, 194706745, 246945140, 311530792, 389413490, 493890280, 506237537, 778826980, 1012475074, 1557653960, 2024950148, 2531187685, 4049900296, 5062375370, 10124750740, 20249501480]

約数ペア:

[(1, 20249501480), (2, 10124750740), (4, 5062375370), (5, 4049900296), (8, 2531187685), (10, 2024950148), (13, 1557653960), (20, 1012475074), (26, 778826980), (40, 506237537), (41, 493890280), (52, 389413490), (65, 311530792), (82, 246945140), (104, 194706745), (130, 155765396), (164, 123472570), (205, 98778056), (260, 77882698), (328, 61736285), (410, 49389028), (520, 38941349), (533, 37991560), (820, 24694514), (1066, 18995780), (1640, 12347257), (2132, 9497890), (2665, 7598312), (4264, 4748945), (5330, 3799156), (10660, 1899578), (21320, 949789)]