80840560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:962

約数の個数: 80

約数和(自身を含む): 199487232

約数和(自身を除く): 118646672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 592, 620, 740, 881, 1147, 1240, 1480, 1762, 2294, 2480, 2960, 3524, 4405, 4588, 5735, 7048, 8810, 9176, 11470, 14096, 17620, 18352, 22940, 27311, 32597, 35240, 45880, 54622, 65194, 70480, 91760, 109244, 130388, 136555, 162985, 218488, 260776, 273110, 325970, 436976, 521552, 546220, 651940, 1010507, 1092440, 1303880, 2021014, 2184880, 2607760, 4042028, 5052535, 8084056, 10105070, 16168112, 20210140, 40420280, 80840560]

約数ペア:

[(1, 80840560), (2, 40420280), (4, 20210140), (5, 16168112), (8, 10105070), (10, 8084056), (16, 5052535), (20, 4042028), (31, 2607760), (37, 2184880), (40, 2021014), (62, 1303880), (74, 1092440), (80, 1010507), (124, 651940), (148, 546220), (155, 521552), (185, 436976), (248, 325970), (296, 273110), (310, 260776), (370, 218488), (496, 162985), (592, 136555), (620, 130388), (740, 109244), (881, 91760), (1147, 70480), (1240, 65194), (1480, 54622), (1762, 45880), (2294, 35240), (2480, 32597), (2960, 27311), (3524, 22940), (4405, 18352), (4588, 17620), (5735, 14096), (7048, 11470), (8810, 9176)]