20309472

素因数分解:

$2^5\times 3^2\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:840

約数の個数: 72

約数和(自身を含む): 58430736

約数和(自身を除く): 38121264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 97, 144, 194, 288, 291, 388, 582, 727, 776, 873, 1164, 1454, 1552, 1746, 2181, 2328, 2908, 3104, 3492, 4362, 4656, 5816, 6543, 6984, 8724, 9312, 11632, 13086, 13968, 17448, 23264, 26172, 27936, 34896, 52344, 69792, 70519, 104688, 141038, 209376, 211557, 282076, 423114, 564152, 634671, 846228, 1128304, 1269342, 1692456, 2256608, 2538684, 3384912, 5077368, 6769824, 10154736, 20309472]

約数ペア:

[(1, 20309472), (2, 10154736), (3, 6769824), (4, 5077368), (6, 3384912), (8, 2538684), (9, 2256608), (12, 1692456), (16, 1269342), (18, 1128304), (24, 846228), (32, 634671), (36, 564152), (48, 423114), (72, 282076), (96, 211557), (97, 209376), (144, 141038), (194, 104688), (288, 70519), (291, 69792), (388, 52344), (582, 34896), (727, 27936), (776, 26172), (873, 23264), (1164, 17448), (1454, 13968), (1552, 13086), (1746, 11632), (2181, 9312), (2328, 8724), (2908, 6984), (3104, 6543), (3492, 5816), (4362, 4656)]