2079740

素因数分解:

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

素因数の和:462

約数の個数: 48

約数和(自身を含む): 4962720

約数和(自身を除く): 2882980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 421, 494, 842, 988, 1235, 1684, 2105, 2470, 4210, 4940, 5473, 7999, 8420, 10946, 15998, 21892, 27365, 31996, 39995, 54730, 79990, 103987, 109460, 159980, 207974, 415948, 519935, 1039870, 2079740]

約数ペア:

[(1, 2079740), (2, 1039870), (4, 519935), (5, 415948), (10, 207974), (13, 159980), (19, 109460), (20, 103987), (26, 79990), (38, 54730), (52, 39995), (65, 31996), (76, 27365), (95, 21892), (130, 15998), (190, 10946), (247, 8420), (260, 7999), (380, 5473), (421, 4940), (494, 4210), (842, 2470), (988, 2105), (1235, 1684)]