64489100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 152386080

約数和(自身を除く): 87896980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 113, 130, 226, 260, 325, 439, 452, 565, 650, 878, 1130, 1300, 1469, 1756, 2195, 2260, 2825, 2938, 4390, 5650, 5707, 5876, 7345, 8780, 10975, 11300, 11414, 14690, 21950, 22828, 28535, 29380, 36725, 43900, 49607, 57070, 73450, 99214, 114140, 142675, 146900, 198428, 248035, 285350, 496070, 570700, 644891, 992140, 1240175, 1289782, 2480350, 2579564, 3224455, 4960700, 6448910, 12897820, 16122275, 32244550, 64489100]

約数ペア:

[(1, 64489100), (2, 32244550), (4, 16122275), (5, 12897820), (10, 6448910), (13, 4960700), (20, 3224455), (25, 2579564), (26, 2480350), (50, 1289782), (52, 1240175), (65, 992140), (100, 644891), (113, 570700), (130, 496070), (226, 285350), (260, 248035), (325, 198428), (439, 146900), (452, 142675), (565, 114140), (650, 99214), (878, 73450), (1130, 57070), (1300, 49607), (1469, 43900), (1756, 36725), (2195, 29380), (2260, 28535), (2825, 22828), (2938, 21950), (4390, 14690), (5650, 11414), (5707, 11300), (5876, 10975), (7345, 8780)]