20135648

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:619

約数の個数: 48

約数和(自身を含む): 43218000

約数和(自身を除く): 23082352

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 499, 776, 998, 1261, 1552, 1996, 2522, 3104, 3992, 5044, 6487, 7984, 10088, 12974, 15968, 20176, 25948, 40352, 48403, 51896, 96806, 103792, 193612, 207584, 387224, 629239, 774448, 1258478, 1548896, 2516956, 5033912, 10067824, 20135648]

約数ペア:

[(1, 20135648), (2, 10067824), (4, 5033912), (8, 2516956), (13, 1548896), (16, 1258478), (26, 774448), (32, 629239), (52, 387224), (97, 207584), (104, 193612), (194, 103792), (208, 96806), (388, 51896), (416, 48403), (499, 40352), (776, 25948), (998, 20176), (1261, 15968), (1552, 12974), (1996, 10088), (2522, 7984), (3104, 6487), (3992, 5044)]