787927660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{3121}}^1$

素因数の和:4114

約数の個数: 48

約数和(自身を含む): 1784335392

約数和(自身を除く): 996407732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 971, 1942, 3121, 3884, 4855, 6242, 9710, 12484, 12623, 15605, 19420, 25246, 31210, 40573, 50492, 62420, 63115, 81146, 126230, 162292, 202865, 252460, 405730, 811460, 3030491, 6060982, 12121964, 15152455, 30304910, 39396383, 60609820, 78792766, 157585532, 196981915, 393963830, 787927660]

約数ペア:

[(1, 787927660), (2, 393963830), (4, 196981915), (5, 157585532), (10, 78792766), (13, 60609820), (20, 39396383), (26, 30304910), (52, 15152455), (65, 12121964), (130, 6060982), (260, 3030491), (971, 811460), (1942, 405730), (3121, 252460), (3884, 202865), (4855, 162292), (6242, 126230), (9710, 81146), (12484, 63115), (12623, 62420), (15605, 50492), (19420, 40573), (25246, 31210)]