265381720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{1783}}^1$

素因数の和:1916

約数の個数: 48

約数和(自身を含む): 607398480

約数和(自身を除く): 342016760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 1783, 2440, 3566, 3721, 7132, 7442, 8915, 14264, 14884, 17830, 18605, 29768, 35660, 37210, 71320, 74420, 108763, 148840, 217526, 435052, 543815, 870104, 1087630, 2175260, 4350520, 6634543, 13269086, 26538172, 33172715, 53076344, 66345430, 132690860, 265381720]

約数ペア:

[(1, 265381720), (2, 132690860), (4, 66345430), (5, 53076344), (8, 33172715), (10, 26538172), (20, 13269086), (40, 6634543), (61, 4350520), (122, 2175260), (244, 1087630), (305, 870104), (488, 543815), (610, 435052), (1220, 217526), (1783, 148840), (2440, 108763), (3566, 74420), (3721, 71320), (7132, 37210), (7442, 35660), (8915, 29768), (14264, 18605), (14884, 17830)]