15995680

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 38034360

約数和(自身を除く): 22038680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 389, 514, 778, 1028, 1285, 1556, 1945, 2056, 2570, 3112, 3890, 4112, 5140, 6224, 7780, 8224, 10280, 12448, 15560, 20560, 31120, 41120, 62240, 99973, 199946, 399892, 499865, 799784, 999730, 1599568, 1999460, 3199136, 3998920, 7997840, 15995680]

約数ペア:

[(1, 15995680), (2, 7997840), (4, 3998920), (5, 3199136), (8, 1999460), (10, 1599568), (16, 999730), (20, 799784), (32, 499865), (40, 399892), (80, 199946), (160, 99973), (257, 62240), (389, 41120), (514, 31120), (778, 20560), (1028, 15560), (1285, 12448), (1556, 10280), (1945, 8224), (2056, 7780), (2570, 6224), (3112, 5140), (3890, 4112)]