31243960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4177}}^1$

素因数の和:4216

約数の個数: 64

約数和(自身を含む): 81220320

約数和(自身を除く): 49976360

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 4177, 7480, 8354, 16708, 20885, 33416, 41770, 45947, 71009, 83540, 91894, 142018, 167080, 183788, 229735, 284036, 355045, 367576, 459470, 568072, 710090, 781099, 918940, 1420180, 1562198, 1837880, 2840360, 3124396, 3905495, 6248792, 7810990, 15621980, 31243960]

約数ペア:

[(1, 31243960), (2, 15621980), (4, 7810990), (5, 6248792), (8, 3905495), (10, 3124396), (11, 2840360), (17, 1837880), (20, 1562198), (22, 1420180), (34, 918940), (40, 781099), (44, 710090), (55, 568072), (68, 459470), (85, 367576), (88, 355045), (110, 284036), (136, 229735), (170, 183788), (187, 167080), (220, 142018), (340, 91894), (374, 83540), (440, 71009), (680, 45947), (748, 41770), (935, 33416), (1496, 20885), (1870, 16708), (3740, 8354), (4177, 7480)]