64854920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124721}}^1$

素因数の和:124745

約数の個数: 32

約数和(自身を含む): 157149720

約数和(自身を除く): 92294800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124721, 249442, 498884, 623605, 997768, 1247210, 1621373, 2494420, 3242746, 4988840, 6485492, 8106865, 12970984, 16213730, 32427460, 64854920]

約数ペア:

[(1, 64854920), (2, 32427460), (4, 16213730), (5, 12970984), (8, 8106865), (10, 6485492), (13, 4988840), (20, 3242746), (26, 2494420), (40, 1621373), (52, 1247210), (65, 997768), (104, 623605), (130, 498884), (260, 249442), (520, 124721)]