20583640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 59512320

約数和(自身を除く): 38928680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 82, 88, 110, 140, 154, 163, 164, 205, 220, 280, 287, 308, 326, 328, 385, 410, 440, 451, 574, 616, 652, 770, 815, 820, 902, 1141, 1148, 1304, 1435, 1540, 1630, 1640, 1793, 1804, 2255, 2282, 2296, 2870, 3080, 3157, 3260, 3586, 3608, 4510, 4564, 5705, 5740, 6314, 6520, 6683, 7172, 8965, 9020, 9128, 11410, 11480, 12551, 12628, 13366, 14344, 15785, 17930, 18040, 22820, 25102, 25256, 26732, 31570, 33415, 35860, 45640, 46781, 50204, 53464, 62755, 63140, 66830, 71720, 73513, 93562, 100408, 125510, 126280, 133660, 147026, 187124, 233905, 251020, 267320, 294052, 367565, 374248, 467810, 502040, 514591, 588104, 735130, 935620, 1029182, 1470260, 1871240, 2058364, 2572955, 2940520, 4116728, 5145910, 10291820, 20583640]

約数ペア:

[(1, 20583640), (2, 10291820), (4, 5145910), (5, 4116728), (7, 2940520), (8, 2572955), (10, 2058364), (11, 1871240), (14, 1470260), (20, 1029182), (22, 935620), (28, 735130), (35, 588104), (40, 514591), (41, 502040), (44, 467810), (55, 374248), (56, 367565), (70, 294052), (77, 267320), (82, 251020), (88, 233905), (110, 187124), (140, 147026), (154, 133660), (163, 126280), (164, 125510), (205, 100408), (220, 93562), (280, 73513), (287, 71720), (308, 66830), (326, 63140), (328, 62755), (385, 53464), (410, 50204), (440, 46781), (451, 45640), (574, 35860), (616, 33415), (652, 31570), (770, 26732), (815, 25256), (820, 25102), (902, 22820), (1141, 18040), (1148, 17930), (1304, 15785), (1435, 14344), (1540, 13366), (1630, 12628), (1640, 12551), (1793, 11480), (1804, 11410), (2255, 9128), (2282, 9020), (2296, 8965), (2870, 7172), (3080, 6683), (3157, 6520), (3260, 6314), (3586, 5740), (3608, 5705), (4510, 4564)]