20473310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 23556130

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 103, 110, 130, 139, 143, 206, 278, 286, 515, 695, 715, 1030, 1133, 1339, 1390, 1430, 1529, 1807, 2266, 2678, 3058, 3614, 5665, 6695, 7645, 9035, 11330, 13390, 14317, 14729, 15290, 18070, 19877, 28634, 29458, 39754, 71585, 73645, 99385, 143170, 147290, 157487, 186121, 198770, 314974, 372242, 787435, 930605, 1574870, 1861210, 2047331, 4094662, 10236655, 20473310]

約数ペア:

[(1, 20473310), (2, 10236655), (5, 4094662), (10, 2047331), (11, 1861210), (13, 1574870), (22, 930605), (26, 787435), (55, 372242), (65, 314974), (103, 198770), (110, 186121), (130, 157487), (139, 147290), (143, 143170), (206, 99385), (278, 73645), (286, 71585), (515, 39754), (695, 29458), (715, 28634), (1030, 19877), (1133, 18070), (1339, 15290), (1390, 14729), (1430, 14317), (1529, 13390), (1807, 11330), (2266, 9035), (2678, 7645), (3058, 6695), (3614, 5665)]