68285720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 167151600

約数和(自身を除く): 98865880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 43, 58, 74, 86, 116, 145, 148, 172, 185, 215, 232, 290, 296, 344, 370, 430, 580, 740, 860, 1073, 1160, 1247, 1369, 1480, 1591, 1720, 2146, 2494, 2738, 3182, 4292, 4988, 5365, 5476, 6235, 6364, 6845, 7955, 8584, 9976, 10730, 10952, 12470, 12728, 13690, 15910, 21460, 24940, 27380, 31820, 39701, 42920, 46139, 49880, 54760, 58867, 63640, 79402, 92278, 117734, 158804, 184556, 198505, 230695, 235468, 294335, 317608, 369112, 397010, 461390, 470936, 588670, 794020, 922780, 1177340, 1588040, 1707143, 1845560, 2354680, 3414286, 6828572, 8535715, 13657144, 17071430, 34142860, 68285720]

約数ペア:

[(1, 68285720), (2, 34142860), (4, 17071430), (5, 13657144), (8, 8535715), (10, 6828572), (20, 3414286), (29, 2354680), (37, 1845560), (40, 1707143), (43, 1588040), (58, 1177340), (74, 922780), (86, 794020), (116, 588670), (145, 470936), (148, 461390), (172, 397010), (185, 369112), (215, 317608), (232, 294335), (290, 235468), (296, 230695), (344, 198505), (370, 184556), (430, 158804), (580, 117734), (740, 92278), (860, 79402), (1073, 63640), (1160, 58867), (1247, 54760), (1369, 49880), (1480, 46139), (1591, 42920), (1720, 39701), (2146, 31820), (2494, 27380), (2738, 24940), (3182, 21460), (4292, 15910), (4988, 13690), (5365, 12728), (5476, 12470), (6235, 10952), (6364, 10730), (6845, 9976), (7955, 8584)]