20481277570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{8677}}^1$

素因数の和:9035

約数の個数: 64

約数和(自身を含む): 40448088576

約数和(自身を除く): 19966811006

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 271, 335, 542, 670, 871, 1355, 1742, 2710, 3523, 4355, 7046, 8677, 8710, 17354, 17615, 18157, 35230, 36314, 43385, 86770, 90785, 112801, 181570, 225602, 236041, 472082, 564005, 581359, 1128010, 1162718, 1180205, 2351467, 2360410, 2906795, 4702934, 5813590, 7557667, 11757335, 15115334, 23514670, 30569071, 37788335, 61138142, 75576670, 152845355, 157548289, 305690710, 315096578, 787741445, 1575482890, 2048127757, 4096255514, 10240638785, 20481277570]

約数ペア:

[(1, 20481277570), (2, 10240638785), (5, 4096255514), (10, 2048127757), (13, 1575482890), (26, 787741445), (65, 315096578), (67, 305690710), (130, 157548289), (134, 152845355), (271, 75576670), (335, 61138142), (542, 37788335), (670, 30569071), (871, 23514670), (1355, 15115334), (1742, 11757335), (2710, 7557667), (3523, 5813590), (4355, 4702934), (7046, 2906795), (8677, 2360410), (8710, 2351467), (17354, 1180205), (17615, 1162718), (18157, 1128010), (35230, 581359), (36314, 564005), (43385, 472082), (86770, 236041), (90785, 225602), (112801, 181570)]