21836574580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{320843}}^1$

素因数の和:320976

約数の個数: 48

約数和(自身を含む): 47541380544

約数和(自身を除く): 25704805964

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 3403, 6806, 13612, 17015, 34030, 68060, 320843, 641686, 1283372, 1604215, 3208430, 6416860, 13154563, 26309126, 26629969, 52618252, 53259938, 65772815, 106519876, 131545630, 133149845, 263091260, 266299690, 532599380, 1091828729, 2183657458, 4367314916, 5459143645, 10918287290, 21836574580]

約数ペア:

[(1, 21836574580), (2, 10918287290), (4, 5459143645), (5, 4367314916), (10, 2183657458), (20, 1091828729), (41, 532599380), (82, 266299690), (83, 263091260), (164, 133149845), (166, 131545630), (205, 106519876), (332, 65772815), (410, 53259938), (415, 52618252), (820, 26629969), (830, 26309126), (1660, 13154563), (3403, 6416860), (6806, 3208430), (13612, 1604215), (17015, 1283372), (34030, 641686), (68060, 320843)]