85105720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 232243200

約数和(自身を除く): 147137480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 47, 56, 58, 70, 94, 116, 140, 145, 188, 203, 223, 232, 235, 280, 290, 329, 376, 406, 446, 470, 580, 658, 812, 892, 940, 1015, 1115, 1160, 1316, 1363, 1561, 1624, 1645, 1784, 1880, 2030, 2230, 2632, 2726, 3122, 3290, 4060, 4460, 5452, 6244, 6467, 6580, 6815, 7805, 8120, 8920, 9541, 10481, 10904, 12488, 12934, 13160, 13630, 15610, 19082, 20962, 25868, 27260, 31220, 32335, 38164, 41924, 45269, 47705, 51736, 52405, 54520, 62440, 64670, 73367, 76328, 83848, 90538, 95410, 104810, 129340, 146734, 181076, 190820, 209620, 226345, 258680, 293468, 303949, 362152, 366835, 381640, 419240, 452690, 586936, 607898, 733670, 905380, 1215796, 1467340, 1519745, 1810760, 2127643, 2431592, 2934680, 3039490, 4255286, 6078980, 8510572, 10638215, 12157960, 17021144, 21276430, 42552860, 85105720]

約数ペア:

[(1, 85105720), (2, 42552860), (4, 21276430), (5, 17021144), (7, 12157960), (8, 10638215), (10, 8510572), (14, 6078980), (20, 4255286), (28, 3039490), (29, 2934680), (35, 2431592), (40, 2127643), (47, 1810760), (56, 1519745), (58, 1467340), (70, 1215796), (94, 905380), (116, 733670), (140, 607898), (145, 586936), (188, 452690), (203, 419240), (223, 381640), (232, 366835), (235, 362152), (280, 303949), (290, 293468), (329, 258680), (376, 226345), (406, 209620), (446, 190820), (470, 181076), (580, 146734), (658, 129340), (812, 104810), (892, 95410), (940, 90538), (1015, 83848), (1115, 76328), (1160, 73367), (1316, 64670), (1363, 62440), (1561, 54520), (1624, 52405), (1645, 51736), (1784, 47705), (1880, 45269), (2030, 41924), (2230, 38164), (2632, 32335), (2726, 31220), (3122, 27260), (3290, 25868), (4060, 20962), (4460, 19082), (5452, 15610), (6244, 13630), (6467, 13160), (6580, 12934), (6815, 12488), (7805, 10904), (8120, 10481), (8920, 9541)]