64991280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{270797}}^1$

素因数の和:270813

約数の個数: 40

約数和(自身を含む): 201473712

約数和(自身を除く): 136482432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 270797, 541594, 812391, 1083188, 1353985, 1624782, 2166376, 2707970, 3249564, 4061955, 4332752, 5415940, 6499128, 8123910, 10831880, 12998256, 16247820, 21663760, 32495640, 64991280]

約数ペア:

[(1, 64991280), (2, 32495640), (3, 21663760), (4, 16247820), (5, 12998256), (6, 10831880), (8, 8123910), (10, 6499128), (12, 5415940), (15, 4332752), (16, 4061955), (20, 3249564), (24, 2707970), (30, 2166376), (40, 1624782), (48, 1353985), (60, 1083188), (80, 812391), (120, 541594), (240, 270797)]