64531880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{230471}}^1$

素因数の和:230489

約数の個数: 32

約数和(自身を含む): 165939840

約数和(自身を除く): 101407960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 230471, 460942, 921884, 1152355, 1613297, 1843768, 2304710, 3226594, 4609420, 6453188, 8066485, 9218840, 12906376, 16132970, 32265940, 64531880]

約数ペア:

[(1, 64531880), (2, 32265940), (4, 16132970), (5, 12906376), (7, 9218840), (8, 8066485), (10, 6453188), (14, 4609420), (20, 3226594), (28, 2304710), (35, 1843768), (40, 1613297), (56, 1152355), (70, 921884), (140, 460942), (280, 230471)]