25894180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 60504192

約数和(自身を除く): 34610012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 163, 169, 188, 235, 260, 326, 338, 470, 611, 652, 676, 815, 845, 940, 1222, 1630, 1690, 2119, 2444, 3055, 3260, 3380, 4238, 6110, 7661, 7943, 8476, 10595, 12220, 15322, 15886, 21190, 27547, 30644, 31772, 38305, 39715, 42380, 55094, 76610, 79430, 99593, 110188, 137735, 153220, 158860, 199186, 275470, 398372, 497965, 550940, 995930, 1294709, 1991860, 2589418, 5178836, 6473545, 12947090, 25894180]

約数ペア:

[(1, 25894180), (2, 12947090), (4, 6473545), (5, 5178836), (10, 2589418), (13, 1991860), (20, 1294709), (26, 995930), (47, 550940), (52, 497965), (65, 398372), (94, 275470), (130, 199186), (163, 158860), (169, 153220), (188, 137735), (235, 110188), (260, 99593), (326, 79430), (338, 76610), (470, 55094), (611, 42380), (652, 39715), (676, 38305), (815, 31772), (845, 30644), (940, 27547), (1222, 21190), (1630, 15886), (1690, 15322), (2119, 12220), (2444, 10595), (3055, 8476), (3260, 7943), (3380, 7661), (4238, 6110)]