20748080560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{61211}}^1$

素因数の和:61466

約数の個数: 80

約数和(自身を含む): 51006735360

約数和(自身を除く): 30258654800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 223, 304, 380, 446, 760, 892, 1115, 1520, 1784, 2230, 3568, 4237, 4460, 8474, 8920, 16948, 17840, 21185, 33896, 42370, 61211, 67792, 84740, 122422, 169480, 244844, 306055, 338960, 489688, 612110, 979376, 1163009, 1224220, 2326018, 2448440, 4652036, 4896880, 5815045, 9304072, 11630090, 13650053, 18608144, 23260180, 27300106, 46520360, 54600212, 68250265, 93040720, 109200424, 136500530, 218400848, 259351007, 273001060, 518702014, 546002120, 1037404028, 1092004240, 1296755035, 2074808056, 2593510070, 4149616112, 5187020140, 10374040280, 20748080560]

約数ペア:

[(1, 20748080560), (2, 10374040280), (4, 5187020140), (5, 4149616112), (8, 2593510070), (10, 2074808056), (16, 1296755035), (19, 1092004240), (20, 1037404028), (38, 546002120), (40, 518702014), (76, 273001060), (80, 259351007), (95, 218400848), (152, 136500530), (190, 109200424), (223, 93040720), (304, 68250265), (380, 54600212), (446, 46520360), (760, 27300106), (892, 23260180), (1115, 18608144), (1520, 13650053), (1784, 11630090), (2230, 9304072), (3568, 5815045), (4237, 4896880), (4460, 4652036), (8474, 2448440), (8920, 2326018), (16948, 1224220), (17840, 1163009), (21185, 979376), (33896, 612110), (42370, 489688), (61211, 338960), (67792, 306055), (84740, 244844), (122422, 169480)]