64403240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{743}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 159096960

約数和(自身を除く): 94693720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 743, 788, 985, 1486, 1576, 1970, 2167, 2972, 3715, 3940, 4334, 5944, 7430, 7880, 8173, 8668, 10835, 14860, 16346, 17336, 21670, 29720, 32692, 40865, 43340, 65384, 81730, 86680, 146371, 163460, 292742, 326920, 585484, 731855, 1170968, 1463710, 1610081, 2927420, 3220162, 5854840, 6440324, 8050405, 12880648, 16100810, 32201620, 64403240]

約数ペア:

[(1, 64403240), (2, 32201620), (4, 16100810), (5, 12880648), (8, 8050405), (10, 6440324), (11, 5854840), (20, 3220162), (22, 2927420), (40, 1610081), (44, 1463710), (55, 1170968), (88, 731855), (110, 585484), (197, 326920), (220, 292742), (394, 163460), (440, 146371), (743, 86680), (788, 81730), (985, 65384), (1486, 43340), (1576, 40865), (1970, 32692), (2167, 29720), (2972, 21670), (3715, 17336), (3940, 16346), (4334, 14860), (5944, 10835), (7430, 8668), (7880, 8173)]