644461020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{511477}}^1$

素因数の和:511499

約数の個数: 72

約数和(自身を含む): 2234135904

約数和(自身を除く): 1589674884

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 511477, 1022954, 1534431, 2045908, 2557385, 3068862, 3580339, 4603293, 5114770, 6137724, 7160678, 7672155, 9206586, 10229540, 10741017, 14321356, 15344310, 17901695, 18413172, 21482034, 23016465, 30688620, 32223051, 35803390, 42964068, 46032930, 53705085, 64446102, 71606780, 92065860, 107410170, 128892204, 161115255, 214820340, 322230510, 644461020]

約数ペア:

[(1, 644461020), (2, 322230510), (3, 214820340), (4, 161115255), (5, 128892204), (6, 107410170), (7, 92065860), (9, 71606780), (10, 64446102), (12, 53705085), (14, 46032930), (15, 42964068), (18, 35803390), (20, 32223051), (21, 30688620), (28, 23016465), (30, 21482034), (35, 18413172), (36, 17901695), (42, 15344310), (45, 14321356), (60, 10741017), (63, 10229540), (70, 9206586), (84, 7672155), (90, 7160678), (105, 6137724), (126, 5114770), (140, 4603293), (180, 3580339), (210, 3068862), (252, 2557385), (315, 2045908), (420, 1534431), (630, 1022954), (1260, 511477)]