81835880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{971}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 219399840

約数和(自身を除く): 137563960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 49, 56, 70, 86, 98, 140, 172, 196, 215, 245, 280, 301, 344, 392, 430, 490, 602, 860, 971, 980, 1204, 1505, 1720, 1942, 1960, 2107, 2408, 3010, 3884, 4214, 4855, 6020, 6797, 7768, 8428, 9710, 10535, 12040, 13594, 16856, 19420, 21070, 27188, 33985, 38840, 41753, 42140, 47579, 54376, 67970, 83506, 84280, 95158, 135940, 167012, 190316, 208765, 237895, 271880, 292271, 334024, 380632, 417530, 475790, 584542, 835060, 951580, 1169084, 1461355, 1670120, 1903160, 2045897, 2338168, 2922710, 4091794, 5845420, 8183588, 10229485, 11690840, 16367176, 20458970, 40917940, 81835880]

約数ペア:

[(1, 81835880), (2, 40917940), (4, 20458970), (5, 16367176), (7, 11690840), (8, 10229485), (10, 8183588), (14, 5845420), (20, 4091794), (28, 2922710), (35, 2338168), (40, 2045897), (43, 1903160), (49, 1670120), (56, 1461355), (70, 1169084), (86, 951580), (98, 835060), (140, 584542), (172, 475790), (196, 417530), (215, 380632), (245, 334024), (280, 292271), (301, 271880), (344, 237895), (392, 208765), (430, 190316), (490, 167012), (602, 135940), (860, 95158), (971, 84280), (980, 83506), (1204, 67970), (1505, 54376), (1720, 47579), (1942, 42140), (1960, 41753), (2107, 38840), (2408, 33985), (3010, 27188), (3884, 21070), (4214, 19420), (4855, 16856), (6020, 13594), (6797, 12040), (7768, 10535), (8428, 9710)]