85702780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{569}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 191328480

約数和(自身を除く): 105625700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 443, 569, 886, 1138, 1772, 2215, 2276, 2845, 4430, 5690, 7531, 8860, 9673, 11380, 15062, 19346, 30124, 37655, 38692, 48365, 75310, 96730, 150620, 193460, 252067, 504134, 1008268, 1260335, 2520670, 4285139, 5041340, 8570278, 17140556, 21425695, 42851390, 85702780]

約数ペア:

[(1, 85702780), (2, 42851390), (4, 21425695), (5, 17140556), (10, 8570278), (17, 5041340), (20, 4285139), (34, 2520670), (68, 1260335), (85, 1008268), (170, 504134), (340, 252067), (443, 193460), (569, 150620), (886, 96730), (1138, 75310), (1772, 48365), (2215, 38692), (2276, 37655), (2845, 30124), (4430, 19346), (5690, 15062), (7531, 11380), (8860, 9673)]