208441640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:567

約数の個数: 128

約数和(自身を含む): 547430400

約数和(自身を除く): 338988760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 43, 44, 46, 55, 86, 88, 92, 110, 115, 172, 184, 215, 220, 230, 253, 344, 430, 440, 460, 473, 479, 506, 860, 920, 946, 958, 989, 1012, 1265, 1720, 1892, 1916, 1978, 2024, 2365, 2395, 2530, 3784, 3832, 3956, 4730, 4790, 4945, 5060, 5269, 7912, 9460, 9580, 9890, 10120, 10538, 10879, 11017, 18920, 19160, 19780, 20597, 21076, 21758, 22034, 26345, 39560, 41194, 42152, 43516, 44068, 52690, 54395, 55085, 82388, 87032, 88136, 102985, 105380, 108790, 110170, 121187, 164776, 205970, 210760, 217580, 220340, 226567, 242374, 411940, 435160, 440680, 453134, 473731, 484748, 605935, 823880, 906268, 947462, 969496, 1132835, 1211870, 1812536, 1894924, 2265670, 2368655, 2423740, 3789848, 4531340, 4737310, 4847480, 5211041, 9062680, 9474620, 10422082, 18949240, 20844164, 26055205, 41688328, 52110410, 104220820, 208441640]

約数ペア:

[(1, 208441640), (2, 104220820), (4, 52110410), (5, 41688328), (8, 26055205), (10, 20844164), (11, 18949240), (20, 10422082), (22, 9474620), (23, 9062680), (40, 5211041), (43, 4847480), (44, 4737310), (46, 4531340), (55, 3789848), (86, 2423740), (88, 2368655), (92, 2265670), (110, 1894924), (115, 1812536), (172, 1211870), (184, 1132835), (215, 969496), (220, 947462), (230, 906268), (253, 823880), (344, 605935), (430, 484748), (440, 473731), (460, 453134), (473, 440680), (479, 435160), (506, 411940), (860, 242374), (920, 226567), (946, 220340), (958, 217580), (989, 210760), (1012, 205970), (1265, 164776), (1720, 121187), (1892, 110170), (1916, 108790), (1978, 105380), (2024, 102985), (2365, 88136), (2395, 87032), (2530, 82388), (3784, 55085), (3832, 54395), (3956, 52690), (4730, 44068), (4790, 43516), (4945, 42152), (5060, 41194), (5269, 39560), (7912, 26345), (9460, 22034), (9580, 21758), (9890, 21076), (10120, 20597), (10538, 19780), (10879, 19160), (11017, 18920)]