291915080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 718502400

約数和(自身を除く): 426587320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 71, 82, 92, 109, 115, 142, 164, 184, 205, 218, 230, 284, 328, 355, 410, 436, 460, 545, 568, 710, 820, 872, 920, 943, 1090, 1420, 1633, 1640, 1886, 2180, 2507, 2840, 2911, 3266, 3772, 4360, 4469, 4715, 5014, 5822, 6532, 7544, 7739, 8165, 8938, 9430, 10028, 11644, 12535, 13064, 14555, 15478, 16330, 17876, 18860, 20056, 22345, 23288, 25070, 29110, 30956, 32660, 35752, 37720, 38695, 44690, 50140, 58220, 61912, 65320, 66953, 77390, 89380, 100280, 102787, 116440, 133906, 154780, 177997, 178760, 205574, 267812, 309560, 317299, 334765, 355994, 411148, 513935, 535624, 634598, 669530, 711988, 822296, 889985, 1027870, 1269196, 1339060, 1423976, 1586495, 1779970, 2055740, 2538392, 2678120, 3172990, 3559940, 4111480, 6345980, 7119880, 7297877, 12691960, 14595754, 29191508, 36489385, 58383016, 72978770, 145957540, 291915080]

約数ペア:

[(1, 291915080), (2, 145957540), (4, 72978770), (5, 58383016), (8, 36489385), (10, 29191508), (20, 14595754), (23, 12691960), (40, 7297877), (41, 7119880), (46, 6345980), (71, 4111480), (82, 3559940), (92, 3172990), (109, 2678120), (115, 2538392), (142, 2055740), (164, 1779970), (184, 1586495), (205, 1423976), (218, 1339060), (230, 1269196), (284, 1027870), (328, 889985), (355, 822296), (410, 711988), (436, 669530), (460, 634598), (545, 535624), (568, 513935), (710, 411148), (820, 355994), (872, 334765), (920, 317299), (943, 309560), (1090, 267812), (1420, 205574), (1633, 178760), (1640, 177997), (1886, 154780), (2180, 133906), (2507, 116440), (2840, 102787), (2911, 100280), (3266, 89380), (3772, 77390), (4360, 66953), (4469, 65320), (4715, 61912), (5014, 58220), (5822, 50140), (6532, 44690), (7544, 38695), (7739, 37720), (8165, 35752), (8938, 32660), (9430, 30956), (10028, 29110), (11644, 25070), (12535, 23288), (13064, 22345), (14555, 20056), (15478, 18860), (16330, 17876)]