51386840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1429}}^1$

素因数の和:1500

約数の個数: 64

約数和(自身を含む): 123552000

約数和(自身を除く): 72165160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1429, 1798, 2858, 3596, 4495, 5716, 7145, 7192, 8990, 11432, 14290, 17980, 28580, 35960, 41441, 44299, 57160, 82882, 88598, 165764, 177196, 207205, 221495, 331528, 354392, 414410, 442990, 828820, 885980, 1284671, 1657640, 1771960, 2569342, 5138684, 6423355, 10277368, 12846710, 25693420, 51386840]

約数ペア:

[(1, 51386840), (2, 25693420), (4, 12846710), (5, 10277368), (8, 6423355), (10, 5138684), (20, 2569342), (29, 1771960), (31, 1657640), (40, 1284671), (58, 885980), (62, 828820), (116, 442990), (124, 414410), (145, 354392), (155, 331528), (232, 221495), (248, 207205), (290, 177196), (310, 165764), (580, 88598), (620, 82882), (899, 57160), (1160, 44299), (1240, 41441), (1429, 35960), (1798, 28580), (2858, 17980), (3596, 14290), (4495, 11432), (5716, 8990), (7145, 7192)]