690381640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{3413}}^1$

素因数の和:3826

約数の個数: 64

約数和(自身を含む): 1677639600

約数和(自身を除く): 987257960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 389, 520, 778, 1556, 1945, 3112, 3413, 3890, 5057, 6826, 7780, 10114, 13652, 15560, 17065, 20228, 25285, 27304, 34130, 40456, 44369, 50570, 68260, 88738, 101140, 136520, 177476, 202280, 221845, 354952, 443690, 887380, 1327657, 1774760, 2655314, 5310628, 6638285, 10621256, 13276570, 17259541, 26553140, 34519082, 53106280, 69038164, 86297705, 138076328, 172595410, 345190820, 690381640]

約数ペア:

[(1, 690381640), (2, 345190820), (4, 172595410), (5, 138076328), (8, 86297705), (10, 69038164), (13, 53106280), (20, 34519082), (26, 26553140), (40, 17259541), (52, 13276570), (65, 10621256), (104, 6638285), (130, 5310628), (260, 2655314), (389, 1774760), (520, 1327657), (778, 887380), (1556, 443690), (1945, 354952), (3112, 221845), (3413, 202280), (3890, 177476), (5057, 136520), (6826, 101140), (7780, 88738), (10114, 68260), (13652, 50570), (15560, 44369), (17065, 40456), (20228, 34130), (25285, 27304)]