25755380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 64551816

約数和(自身を除く): 38796436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 641, 820, 980, 1148, 1282, 1435, 2009, 2564, 2870, 3205, 4018, 4487, 5740, 6410, 8036, 8974, 10045, 12820, 17948, 20090, 22435, 26281, 31409, 40180, 44870, 52562, 62818, 89740, 105124, 125636, 131405, 157045, 183967, 262810, 314090, 367934, 525620, 628180, 735868, 919835, 1287769, 1839670, 2575538, 3679340, 5151076, 6438845, 12877690, 25755380]

約数ペア:

[(1, 25755380), (2, 12877690), (4, 6438845), (5, 5151076), (7, 3679340), (10, 2575538), (14, 1839670), (20, 1287769), (28, 919835), (35, 735868), (41, 628180), (49, 525620), (70, 367934), (82, 314090), (98, 262810), (140, 183967), (164, 157045), (196, 131405), (205, 125636), (245, 105124), (287, 89740), (410, 62818), (490, 52562), (574, 44870), (641, 40180), (820, 31409), (980, 26281), (1148, 22435), (1282, 20090), (1435, 17948), (2009, 12820), (2564, 10045), (2870, 8974), (3205, 8036), (4018, 6410), (4487, 5740)]