19640452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 39544960

約数和(自身を除く): 19904508

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 103, 193, 206, 247, 386, 412, 494, 772, 988, 1339, 1957, 2509, 2678, 3667, 3914, 5018, 5356, 7334, 7828, 10036, 14668, 19879, 25441, 39758, 47671, 50882, 79516, 95342, 101764, 190684, 258427, 377701, 516854, 755402, 1033708, 1510804, 4910113, 9820226, 19640452]

約数ペア:

[(1, 19640452), (2, 9820226), (4, 4910113), (13, 1510804), (19, 1033708), (26, 755402), (38, 516854), (52, 377701), (76, 258427), (103, 190684), (193, 101764), (206, 95342), (247, 79516), (386, 50882), (412, 47671), (494, 39758), (772, 25441), (988, 19879), (1339, 14668), (1957, 10036), (2509, 7828), (2678, 7334), (3667, 5356), (3914, 5018)]