128535428

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 72

約数和(自身を含む): 272188224

約数和(自身を除く): 143652796

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 101, 151, 172, 196, 202, 301, 302, 404, 602, 604, 707, 1057, 1204, 1414, 2107, 2114, 2828, 4214, 4228, 4343, 4949, 6493, 7399, 8428, 8686, 9898, 12986, 14798, 15251, 17372, 19796, 25972, 29596, 30401, 30502, 45451, 60802, 61004, 90902, 106757, 121604, 181804, 212807, 213514, 318157, 425614, 427028, 636314, 655793, 747299, 851228, 1272628, 1311586, 1494598, 2623172, 2989196, 4590551, 9181102, 18362204, 32133857, 64267714, 128535428]

約数ペア:

[(1, 128535428), (2, 64267714), (4, 32133857), (7, 18362204), (14, 9181102), (28, 4590551), (43, 2989196), (49, 2623172), (86, 1494598), (98, 1311586), (101, 1272628), (151, 851228), (172, 747299), (196, 655793), (202, 636314), (301, 427028), (302, 425614), (404, 318157), (602, 213514), (604, 212807), (707, 181804), (1057, 121604), (1204, 106757), (1414, 90902), (2107, 61004), (2114, 60802), (2828, 45451), (4214, 30502), (4228, 30401), (4343, 29596), (4949, 25972), (6493, 19796), (7399, 17372), (8428, 15251), (8686, 14798), (9898, 12986)]