15147580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 36582336

約数和(自身を除く): 21434756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 421, 514, 842, 1028, 1285, 1684, 1799, 2105, 2570, 2947, 3598, 4210, 5140, 5894, 7196, 8420, 8995, 11788, 14735, 17990, 29470, 35980, 58940, 108197, 216394, 432788, 540985, 757379, 1081970, 1514758, 2163940, 3029516, 3786895, 7573790, 15147580]

約数ペア:

[(1, 15147580), (2, 7573790), (4, 3786895), (5, 3029516), (7, 2163940), (10, 1514758), (14, 1081970), (20, 757379), (28, 540985), (35, 432788), (70, 216394), (140, 108197), (257, 58940), (421, 35980), (514, 29470), (842, 17990), (1028, 14735), (1285, 11788), (1684, 8995), (1799, 8420), (2105, 7196), (2570, 5894), (2947, 5140), (3598, 4210)]