85468520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 216691200

約数和(自身を除く): 131222680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 43, 68, 74, 79, 85, 86, 136, 148, 158, 170, 172, 185, 215, 296, 316, 340, 344, 370, 395, 430, 629, 632, 680, 731, 740, 790, 860, 1258, 1343, 1462, 1480, 1580, 1591, 1720, 2516, 2686, 2923, 2924, 3145, 3160, 3182, 3397, 3655, 5032, 5372, 5846, 5848, 6290, 6364, 6715, 6794, 7310, 7955, 10744, 11692, 12580, 12728, 13430, 13588, 14615, 14620, 15910, 16985, 23384, 25160, 26860, 27047, 27176, 29230, 29240, 31820, 33970, 49691, 53720, 54094, 57749, 58460, 63640, 67940, 99382, 108188, 115498, 116920, 125689, 135235, 135880, 198764, 216376, 230996, 248455, 251378, 270470, 288745, 397528, 461992, 496910, 502756, 540940, 577490, 628445, 993820, 1005512, 1081880, 1154980, 1256890, 1987640, 2136713, 2309960, 2513780, 4273426, 5027560, 8546852, 10683565, 17093704, 21367130, 42734260, 85468520]

約数ペア:

[(1, 85468520), (2, 42734260), (4, 21367130), (5, 17093704), (8, 10683565), (10, 8546852), (17, 5027560), (20, 4273426), (34, 2513780), (37, 2309960), (40, 2136713), (43, 1987640), (68, 1256890), (74, 1154980), (79, 1081880), (85, 1005512), (86, 993820), (136, 628445), (148, 577490), (158, 540940), (170, 502756), (172, 496910), (185, 461992), (215, 397528), (296, 288745), (316, 270470), (340, 251378), (344, 248455), (370, 230996), (395, 216376), (430, 198764), (629, 135880), (632, 135235), (680, 125689), (731, 116920), (740, 115498), (790, 108188), (860, 99382), (1258, 67940), (1343, 63640), (1462, 58460), (1480, 57749), (1580, 54094), (1591, 53720), (1720, 49691), (2516, 33970), (2686, 31820), (2923, 29240), (2924, 29230), (3145, 27176), (3160, 27047), (3182, 26860), (3397, 25160), (3655, 23384), (5032, 16985), (5372, 15910), (5846, 14620), (5848, 14615), (6290, 13588), (6364, 13430), (6715, 12728), (6794, 12580), (7310, 11692), (7955, 10744)]