81154528

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 210198240

約数和(自身を除く): 129043712

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 31, 32, 52, 56, 58, 62, 91, 104, 112, 116, 124, 182, 203, 208, 217, 224, 232, 248, 364, 377, 403, 406, 416, 434, 464, 496, 728, 754, 806, 812, 868, 899, 928, 961, 992, 1456, 1508, 1612, 1624, 1736, 1798, 1922, 2639, 2821, 2912, 3016, 3224, 3248, 3472, 3596, 3844, 5278, 5642, 6032, 6293, 6448, 6496, 6727, 6944, 7192, 7688, 10556, 11284, 11687, 12064, 12493, 12586, 12896, 13454, 14384, 15376, 21112, 22568, 23374, 24986, 25172, 26908, 27869, 28768, 30752, 42224, 45136, 46748, 49972, 50344, 53816, 55738, 81809, 84448, 87451, 90272, 93496, 99944, 100688, 107632, 111476, 163618, 174902, 186992, 195083, 199888, 201376, 215264, 222952, 327236, 349804, 362297, 373984, 390166, 399776, 445904, 654472, 699608, 724594, 780332, 891808, 1308944, 1399216, 1449188, 1560664, 2536079, 2617888, 2798432, 2898376, 3121328, 5072158, 5796752, 6242656, 10144316, 11593504, 20288632, 40577264, 81154528]

約数ペア:

[(1, 81154528), (2, 40577264), (4, 20288632), (7, 11593504), (8, 10144316), (13, 6242656), (14, 5796752), (16, 5072158), (26, 3121328), (28, 2898376), (29, 2798432), (31, 2617888), (32, 2536079), (52, 1560664), (56, 1449188), (58, 1399216), (62, 1308944), (91, 891808), (104, 780332), (112, 724594), (116, 699608), (124, 654472), (182, 445904), (203, 399776), (208, 390166), (217, 373984), (224, 362297), (232, 349804), (248, 327236), (364, 222952), (377, 215264), (403, 201376), (406, 199888), (416, 195083), (434, 186992), (464, 174902), (496, 163618), (728, 111476), (754, 107632), (806, 100688), (812, 99944), (868, 93496), (899, 90272), (928, 87451), (961, 84448), (992, 81809), (1456, 55738), (1508, 53816), (1612, 50344), (1624, 49972), (1736, 46748), (1798, 45136), (1922, 42224), (2639, 30752), (2821, 28768), (2912, 27869), (3016, 26908), (3224, 25172), (3248, 24986), (3472, 23374), (3596, 22568), (3844, 21112), (5278, 15376), (5642, 14384), (6032, 13454), (6293, 12896), (6448, 12586), (6496, 12493), (6727, 12064), (6944, 11687), (7192, 11284), (7688, 10556)]