16278520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{647}}^1$

素因数の和:712

約数の個数: 64

約数和(自身を含む): 39890880

約数和(自身を除く): 23612360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 296, 340, 370, 629, 647, 680, 740, 1258, 1294, 1480, 2516, 2588, 3145, 3235, 5032, 5176, 6290, 6470, 10999, 12580, 12940, 21998, 23939, 25160, 25880, 43996, 47878, 54995, 87992, 95756, 109990, 119695, 191512, 219980, 239390, 406963, 439960, 478780, 813926, 957560, 1627852, 2034815, 3255704, 4069630, 8139260, 16278520]

約数ペア:

[(1, 16278520), (2, 8139260), (4, 4069630), (5, 3255704), (8, 2034815), (10, 1627852), (17, 957560), (20, 813926), (34, 478780), (37, 439960), (40, 406963), (68, 239390), (74, 219980), (85, 191512), (136, 119695), (148, 109990), (170, 95756), (185, 87992), (296, 54995), (340, 47878), (370, 43996), (629, 25880), (647, 25160), (680, 23939), (740, 21998), (1258, 12940), (1294, 12580), (1480, 10999), (2516, 6470), (2588, 6290), (3145, 5176), (3235, 5032)]