25484810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 52157952

約数和(自身を除く): 26673142

約数列:

[1, 2, 5, 10, 13, 26, 43, 47, 65, 86, 94, 97, 130, 194, 215, 235, 430, 470, 485, 559, 611, 970, 1118, 1222, 1261, 2021, 2522, 2795, 3055, 4042, 4171, 4559, 5590, 6110, 6305, 8342, 9118, 10105, 12610, 20210, 20855, 22795, 26273, 41710, 45590, 52546, 54223, 59267, 108446, 118534, 131365, 196037, 262730, 271115, 296335, 392074, 542230, 592670, 980185, 1960370, 2548481, 5096962, 12742405, 25484810]

約数ペア:

[(1, 25484810), (2, 12742405), (5, 5096962), (10, 2548481), (13, 1960370), (26, 980185), (43, 592670), (47, 542230), (65, 392074), (86, 296335), (94, 271115), (97, 262730), (130, 196037), (194, 131365), (215, 118534), (235, 108446), (430, 59267), (470, 54223), (485, 52546), (559, 45590), (611, 41710), (970, 26273), (1118, 22795), (1222, 20855), (1261, 20210), (2021, 12610), (2522, 10105), (2795, 9118), (3055, 8342), (4042, 6305), (4171, 6110), (4559, 5590)]