65204180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 150859800

約数和(自身を除く): 85655620

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 289, 290, 340, 389, 493, 578, 580, 778, 986, 1156, 1445, 1556, 1945, 1972, 2465, 2890, 3890, 4930, 5780, 6613, 7780, 8381, 9860, 11281, 13226, 16762, 22562, 26452, 33065, 33524, 41905, 45124, 56405, 66130, 83810, 112421, 112810, 132260, 167620, 191777, 224842, 225620, 383554, 449684, 562105, 767108, 958885, 1124210, 1917770, 2248420, 3260209, 3835540, 6520418, 13040836, 16301045, 32602090, 65204180]

約数ペア:

[(1, 65204180), (2, 32602090), (4, 16301045), (5, 13040836), (10, 6520418), (17, 3835540), (20, 3260209), (29, 2248420), (34, 1917770), (58, 1124210), (68, 958885), (85, 767108), (116, 562105), (145, 449684), (170, 383554), (289, 225620), (290, 224842), (340, 191777), (389, 167620), (493, 132260), (578, 112810), (580, 112421), (778, 83810), (986, 66130), (1156, 56405), (1445, 45124), (1556, 41905), (1945, 33524), (1972, 33065), (2465, 26452), (2890, 22562), (3890, 16762), (4930, 13226), (5780, 11281), (6613, 9860), (7780, 8381)]