19757530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 40517064

約数和(自身を除く): 20759534

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 361, 421, 494, 722, 842, 1235, 1805, 2105, 2470, 3610, 4210, 4693, 5473, 7999, 9386, 10946, 15998, 23465, 27365, 39995, 46930, 54730, 79990, 103987, 151981, 207974, 303962, 519935, 759905, 1039870, 1519810, 1975753, 3951506, 9878765, 19757530]

約数ペア:

[(1, 19757530), (2, 9878765), (5, 3951506), (10, 1975753), (13, 1519810), (19, 1039870), (26, 759905), (38, 519935), (65, 303962), (95, 207974), (130, 151981), (190, 103987), (247, 79990), (361, 54730), (421, 46930), (494, 39995), (722, 27365), (842, 23465), (1235, 15998), (1805, 10946), (2105, 9386), (2470, 7999), (3610, 5473), (4210, 4693)]