20090714920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1289}}^1\times {\mathrm{22921}}^1$

素因数の和:24238

約数の個数: 64

約数和(自身を含む): 47902395600

約数和(自身を除く): 27811680680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1289, 2578, 5156, 6445, 10312, 12890, 21913, 22921, 25780, 43826, 45842, 51560, 87652, 91684, 109565, 114605, 175304, 183368, 219130, 229210, 389657, 438260, 458420, 779314, 876520, 916840, 1558628, 1948285, 3117256, 3896570, 7793140, 15586280, 29545169, 59090338, 118180676, 147725845, 236361352, 295451690, 502267873, 590903380, 1004535746, 1181806760, 2009071492, 2511339365, 4018142984, 5022678730, 10045357460, 20090714920]

約数ペア:

[(1, 20090714920), (2, 10045357460), (4, 5022678730), (5, 4018142984), (8, 2511339365), (10, 2009071492), (17, 1181806760), (20, 1004535746), (34, 590903380), (40, 502267873), (68, 295451690), (85, 236361352), (136, 147725845), (170, 118180676), (340, 59090338), (680, 29545169), (1289, 15586280), (2578, 7793140), (5156, 3896570), (6445, 3117256), (10312, 1948285), (12890, 1558628), (21913, 916840), (22921, 876520), (25780, 779314), (43826, 458420), (45842, 438260), (51560, 389657), (87652, 229210), (91684, 219130), (109565, 183368), (114605, 175304)]