647771260

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{4673}}^1$

素因数の和:4950

約数の個数: 48

約数和(自身を含む): 1413417600

約数和(自身を除く): 765646340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 239, 290, 478, 580, 956, 1195, 2390, 4673, 4780, 6931, 9346, 13862, 18692, 23365, 27724, 34655, 46730, 69310, 93460, 135517, 138620, 271034, 542068, 677585, 1116847, 1355170, 2233694, 2710340, 4467388, 5584235, 11168470, 22336940, 32388563, 64777126, 129554252, 161942815, 323885630, 647771260]

約数ペア:

[(1, 647771260), (2, 323885630), (4, 161942815), (5, 129554252), (10, 64777126), (20, 32388563), (29, 22336940), (58, 11168470), (116, 5584235), (145, 4467388), (239, 2710340), (290, 2233694), (478, 1355170), (580, 1116847), (956, 677585), (1195, 542068), (2390, 271034), (4673, 138620), (4780, 135517), (6931, 93460), (9346, 69310), (13862, 46730), (18692, 34655), (23365, 27724)]