16561460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 19363660

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 109, 142, 214, 218, 284, 355, 428, 436, 535, 545, 710, 1070, 1090, 1420, 2140, 2180, 7597, 7739, 11663, 15194, 15478, 23326, 30388, 30956, 37985, 38695, 46652, 58315, 75970, 77390, 116630, 151940, 154780, 233260, 828073, 1656146, 3312292, 4140365, 8280730, 16561460]

約数ペア:

[(1, 16561460), (2, 8280730), (4, 4140365), (5, 3312292), (10, 1656146), (20, 828073), (71, 233260), (107, 154780), (109, 151940), (142, 116630), (214, 77390), (218, 75970), (284, 58315), (355, 46652), (428, 38695), (436, 37985), (535, 30956), (545, 30388), (710, 23326), (1070, 15478), (1090, 15194), (1420, 11663), (2140, 7739), (2180, 7597)]