20105992588

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{2381}}^1$

素因数の和:2719

約数の個数: 72

約数和(自身を含む): 39385321920

約数和(自身を除く): 19279329332

約数列:

[1, 2, 4, 11, 22, 44, 73, 121, 146, 239, 242, 292, 478, 484, 803, 956, 1606, 2381, 2629, 3212, 4762, 5258, 8833, 9524, 10516, 17447, 17666, 26191, 28919, 34894, 35332, 52382, 57838, 69788, 104764, 115676, 173813, 191917, 288101, 347626, 383834, 569059, 576202, 695252, 767668, 1138118, 1152404, 1911943, 2111087, 2276236, 3823886, 4222174, 6259649, 7647772, 8444348, 12519298, 21031373, 25038596, 41541307, 42062746, 68856139, 83082614, 84125492, 137712278, 166165228, 275424556, 456954377, 913908754, 1827817508, 5026498147, 10052996294, 20105992588]

約数ペア:

[(1, 20105992588), (2, 10052996294), (4, 5026498147), (11, 1827817508), (22, 913908754), (44, 456954377), (73, 275424556), (121, 166165228), (146, 137712278), (239, 84125492), (242, 83082614), (292, 68856139), (478, 42062746), (484, 41541307), (803, 25038596), (956, 21031373), (1606, 12519298), (2381, 8444348), (2629, 7647772), (3212, 6259649), (4762, 4222174), (5258, 3823886), (8833, 2276236), (9524, 2111087), (10516, 1911943), (17447, 1152404), (17666, 1138118), (26191, 767668), (28919, 695252), (34894, 576202), (35332, 569059), (52382, 383834), (57838, 347626), (69788, 288101), (104764, 191917), (115676, 173813)]