7990450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:691

約数の個数: 48

約数和(自身を含む): 16873920

約数和(自身を除く): 8883470

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 647, 650, 950, 1235, 1294, 2470, 3235, 6175, 6470, 8411, 12293, 12350, 16175, 16822, 24586, 32350, 42055, 61465, 84110, 122930, 159809, 210275, 307325, 319618, 420550, 614650, 799045, 1598090, 3995225, 7990450]

約数ペア:

[(1, 7990450), (2, 3995225), (5, 1598090), (10, 799045), (13, 614650), (19, 420550), (25, 319618), (26, 307325), (38, 210275), (50, 159809), (65, 122930), (95, 84110), (130, 61465), (190, 42055), (247, 32350), (325, 24586), (475, 16822), (494, 16175), (647, 12350), (650, 12293), (950, 8411), (1235, 6470), (1294, 6175), (2470, 3235)]