339975740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{68821}}^1$

素因数の和:68862

約数の個数: 48

約数和(自身を含む): 809346720

約数和(自身を除く): 469370980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 68821, 137642, 275284, 344105, 688210, 894673, 1307599, 1376420, 1789346, 2615198, 3578692, 4473365, 5230396, 6537995, 8946730, 13075990, 16998787, 17893460, 26151980, 33997574, 67995148, 84993935, 169987870, 339975740]

約数ペア:

[(1, 339975740), (2, 169987870), (4, 84993935), (5, 67995148), (10, 33997574), (13, 26151980), (19, 17893460), (20, 16998787), (26, 13075990), (38, 8946730), (52, 6537995), (65, 5230396), (76, 4473365), (95, 3578692), (130, 2615198), (190, 1789346), (247, 1376420), (260, 1307599), (380, 894673), (494, 688210), (988, 344105), (1235, 275284), (2470, 137642), (4940, 68821)]