65702500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:706

約数の個数: 60

約数和(自身を含む): 147412188

約数和(自身を除く): 81709688

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 625, 641, 820, 1025, 1250, 1282, 2050, 2500, 2564, 3205, 4100, 5125, 6410, 10250, 12820, 16025, 20500, 25625, 26281, 32050, 51250, 52562, 64100, 80125, 102500, 105124, 131405, 160250, 262810, 320500, 400625, 525620, 657025, 801250, 1314050, 1602500, 2628100, 3285125, 6570250, 13140500, 16425625, 32851250, 65702500]

約数ペア:

[(1, 65702500), (2, 32851250), (4, 16425625), (5, 13140500), (10, 6570250), (20, 3285125), (25, 2628100), (41, 1602500), (50, 1314050), (82, 801250), (100, 657025), (125, 525620), (164, 400625), (205, 320500), (250, 262810), (410, 160250), (500, 131405), (625, 105124), (641, 102500), (820, 80125), (1025, 64100), (1250, 52562), (1282, 51250), (2050, 32050), (2500, 26281), (2564, 25625), (3205, 20500), (4100, 16025), (5125, 12820), (6410, 10250)]