344804980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{16787}}^1$

素因数の和:16888

約数の個数: 48

約数和(自身を含む): 789707520

約数和(自身を除く): 444902540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 16787, 20540, 33574, 67148, 83935, 167870, 218231, 335740, 436462, 872924, 1091155, 1326173, 2182310, 2652346, 4364620, 5304692, 6630865, 13261730, 17240249, 26523460, 34480498, 68960996, 86201245, 172402490, 344804980]

約数ペア:

[(1, 344804980), (2, 172402490), (4, 86201245), (5, 68960996), (10, 34480498), (13, 26523460), (20, 17240249), (26, 13261730), (52, 6630865), (65, 5304692), (79, 4364620), (130, 2652346), (158, 2182310), (260, 1326173), (316, 1091155), (395, 872924), (790, 436462), (1027, 335740), (1580, 218231), (2054, 167870), (4108, 83935), (5135, 67148), (10270, 33574), (16787, 20540)]