65408560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 174845952

約数和(自身を除く): 109437392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 271, 280, 431, 542, 560, 862, 1084, 1355, 1724, 1897, 2155, 2168, 2710, 3017, 3448, 3794, 4310, 4336, 5420, 6034, 6896, 7588, 8620, 9485, 10840, 12068, 15085, 15176, 17240, 18970, 21680, 24136, 30170, 30352, 34480, 37940, 48272, 60340, 75880, 116801, 120680, 151760, 233602, 241360, 467204, 584005, 817607, 934408, 1168010, 1635214, 1868816, 2336020, 3270428, 4088035, 4672040, 6540856, 8176070, 9344080, 13081712, 16352140, 32704280, 65408560]

約数ペア:

[(1, 65408560), (2, 32704280), (4, 16352140), (5, 13081712), (7, 9344080), (8, 8176070), (10, 6540856), (14, 4672040), (16, 4088035), (20, 3270428), (28, 2336020), (35, 1868816), (40, 1635214), (56, 1168010), (70, 934408), (80, 817607), (112, 584005), (140, 467204), (271, 241360), (280, 233602), (431, 151760), (542, 120680), (560, 116801), (862, 75880), (1084, 60340), (1355, 48272), (1724, 37940), (1897, 34480), (2155, 30352), (2168, 30170), (2710, 24136), (3017, 21680), (3448, 18970), (3794, 17240), (4310, 15176), (4336, 15085), (5420, 12068), (6034, 10840), (6896, 9485), (7588, 8620)]