31880780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2287}}^1$

素因数の和:2354

約数の個数: 48

約数和(自身を含む): 72648576

約数和(自身を除く): 40767796

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 2287, 2788, 3485, 4574, 6970, 9148, 11435, 13940, 22870, 38879, 45740, 77758, 93767, 155516, 187534, 194395, 375068, 388790, 468835, 777580, 937670, 1594039, 1875340, 3188078, 6376156, 7970195, 15940390, 31880780]

約数ペア:

[(1, 31880780), (2, 15940390), (4, 7970195), (5, 6376156), (10, 3188078), (17, 1875340), (20, 1594039), (34, 937670), (41, 777580), (68, 468835), (82, 388790), (85, 375068), (164, 194395), (170, 187534), (205, 155516), (340, 93767), (410, 77758), (697, 45740), (820, 38879), (1394, 22870), (2287, 13940), (2788, 11435), (3485, 9148), (4574, 6970)]