64997820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1373}}^1$

素因数の和:1651

約数の個数: 72

約数和(自身を含む): 198053856

約数和(自身を除く): 133056036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1315, 1373, 1578, 2367, 2630, 2746, 3156, 3945, 4119, 4734, 5260, 5492, 6865, 7890, 8238, 9468, 11835, 12357, 13730, 15780, 16476, 20595, 23670, 24714, 27460, 41190, 47340, 49428, 61785, 82380, 123570, 247140, 361099, 722198, 1083297, 1444396, 1805495, 2166594, 3249891, 3610990, 4333188, 5416485, 6499782, 7221980, 10832970, 12999564, 16249455, 21665940, 32498910, 64997820]

約数ペア:

[(1, 64997820), (2, 32498910), (3, 21665940), (4, 16249455), (5, 12999564), (6, 10832970), (9, 7221980), (10, 6499782), (12, 5416485), (15, 4333188), (18, 3610990), (20, 3249891), (30, 2166594), (36, 1805495), (45, 1444396), (60, 1083297), (90, 722198), (180, 361099), (263, 247140), (526, 123570), (789, 82380), (1052, 61785), (1315, 49428), (1373, 47340), (1578, 41190), (2367, 27460), (2630, 24714), (2746, 23670), (3156, 20595), (3945, 16476), (4119, 15780), (4734, 13730), (5260, 12357), (5492, 11835), (6865, 9468), (7890, 8238)]