20002268

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:84

約数の個数: 72

約数和(自身を含む): 44045904

約数和(自身を除く): 24043636

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 121, 143, 187, 221, 242, 286, 289, 374, 442, 484, 572, 578, 748, 884, 1156, 1331, 1573, 2057, 2431, 2662, 3146, 3179, 3757, 4114, 4862, 5324, 6292, 6358, 7514, 8228, 9724, 12716, 15028, 17303, 22627, 26741, 34606, 34969, 41327, 45254, 53482, 69212, 69938, 82654, 90508, 106964, 139876, 165308, 294151, 384659, 454597, 588302, 769318, 909194, 1176604, 1538636, 1818388, 5000567, 10001134, 20002268]

約数ペア:

[(1, 20002268), (2, 10001134), (4, 5000567), (11, 1818388), (13, 1538636), (17, 1176604), (22, 909194), (26, 769318), (34, 588302), (44, 454597), (52, 384659), (68, 294151), (121, 165308), (143, 139876), (187, 106964), (221, 90508), (242, 82654), (286, 69938), (289, 69212), (374, 53482), (442, 45254), (484, 41327), (572, 34969), (578, 34606), (748, 26741), (884, 22627), (1156, 17303), (1331, 15028), (1573, 12716), (2057, 9724), (2431, 8228), (2662, 7514), (3146, 6358), (3179, 6292), (3757, 5324), (4114, 4862)]