250486280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{571}}^1\times {\mathrm{997}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 616524480

約数和(自身を除く): 366038200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 571, 997, 1142, 1994, 2284, 2855, 3988, 4568, 4985, 5710, 6281, 7976, 9970, 10967, 11420, 12562, 19940, 21934, 22840, 25124, 31405, 39880, 43868, 50248, 54835, 62810, 87736, 109670, 125620, 219340, 251240, 438680, 569287, 1138574, 2277148, 2846435, 4554296, 5692870, 6262157, 11385740, 12524314, 22771480, 25048628, 31310785, 50097256, 62621570, 125243140, 250486280]

約数ペア:

[(1, 250486280), (2, 125243140), (4, 62621570), (5, 50097256), (8, 31310785), (10, 25048628), (11, 22771480), (20, 12524314), (22, 11385740), (40, 6262157), (44, 5692870), (55, 4554296), (88, 2846435), (110, 2277148), (220, 1138574), (440, 569287), (571, 438680), (997, 251240), (1142, 219340), (1994, 125620), (2284, 109670), (2855, 87736), (3988, 62810), (4568, 54835), (4985, 50248), (5710, 43868), (6281, 39880), (7976, 31405), (9970, 25124), (10967, 22840), (11420, 21934), (12562, 19940)]