64681175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 95618880

約数和(自身を除く): 30937705

約数列:

[1, 5, 13, 17, 23, 25, 65, 85, 115, 221, 299, 325, 391, 425, 509, 575, 1105, 1495, 1955, 2545, 5083, 5525, 6617, 7475, 8653, 9775, 11707, 12725, 25415, 33085, 43265, 58535, 112489, 127075, 152191, 165425, 199019, 216325, 292675, 562445, 760955, 995095, 2587247, 2812225, 3804775, 4975475, 12936235, 64681175]

約数ペア:

[(1, 64681175), (5, 12936235), (13, 4975475), (17, 3804775), (23, 2812225), (25, 2587247), (65, 995095), (85, 760955), (115, 562445), (221, 292675), (299, 216325), (325, 199019), (391, 165425), (425, 152191), (509, 127075), (575, 112489), (1105, 58535), (1495, 43265), (1955, 33085), (2545, 25415), (5083, 12725), (5525, 11707), (6617, 9775), (7475, 8653)]