64717740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1399}}^1$

素因数の和:1671

約数の個数: 72

約数和(自身を含む): 197215200

約数和(自身を除く): 132497460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 1028, 1285, 1399, 1542, 2313, 2570, 2798, 3084, 3855, 4197, 4626, 5140, 5596, 6995, 7710, 8394, 9252, 11565, 12591, 13990, 15420, 16788, 20985, 23130, 25182, 27980, 41970, 46260, 50364, 62955, 83940, 125910, 251820, 359543, 719086, 1078629, 1438172, 1797715, 2157258, 3235887, 3595430, 4314516, 5393145, 6471774, 7190860, 10786290, 12943548, 16179435, 21572580, 32358870, 64717740]

約数ペア:

[(1, 64717740), (2, 32358870), (3, 21572580), (4, 16179435), (5, 12943548), (6, 10786290), (9, 7190860), (10, 6471774), (12, 5393145), (15, 4314516), (18, 3595430), (20, 3235887), (30, 2157258), (36, 1797715), (45, 1438172), (60, 1078629), (90, 719086), (180, 359543), (257, 251820), (514, 125910), (771, 83940), (1028, 62955), (1285, 50364), (1399, 46260), (1542, 41970), (2313, 27980), (2570, 25182), (2798, 23130), (3084, 20985), (3855, 16788), (4197, 15420), (4626, 13990), (5140, 12591), (5596, 11565), (6995, 9252), (7710, 8394)]