20419116080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1221239}}^1$

素因数の和:1221282

約数の個数: 80

約数和(自身を含む): 54516153600

約数和(自身を除く): 34097037520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 1221239, 2442478, 4884956, 6106195, 9769912, 12212390, 13433629, 19539824, 23203541, 24424780, 26867258, 46407082, 48849560, 53734516, 67168145, 92814164, 97699120, 107469032, 116017705, 134336290, 185628328, 214938064, 232035410, 255238951, 268672580, 371256656, 464070820, 510477902, 537345160, 928141640, 1020955804, 1074690320, 1276194755, 1856283280, 2041911608, 2552389510, 4083823216, 5104779020, 10209558040, 20419116080]

約数ペア:

[(1, 20419116080), (2, 10209558040), (4, 5104779020), (5, 4083823216), (8, 2552389510), (10, 2041911608), (11, 1856283280), (16, 1276194755), (19, 1074690320), (20, 1020955804), (22, 928141640), (38, 537345160), (40, 510477902), (44, 464070820), (55, 371256656), (76, 268672580), (80, 255238951), (88, 232035410), (95, 214938064), (110, 185628328), (152, 134336290), (176, 116017705), (190, 107469032), (209, 97699120), (220, 92814164), (304, 67168145), (380, 53734516), (418, 48849560), (440, 46407082), (760, 26867258), (836, 24424780), (880, 23203541), (1045, 19539824), (1520, 13433629), (1672, 12212390), (2090, 9769912), (3344, 6106195), (4180, 4884956), (8360, 2442478), (16720, 1221239)]