81322020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1511}}^1$

素因数の和:1562

約数の個数: 144

約数和(自身を含む): 277385472

約数和(自身を除く): 196063452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 39, 45, 46, 52, 60, 65, 69, 78, 90, 92, 115, 117, 130, 138, 156, 180, 195, 207, 230, 234, 260, 276, 299, 345, 390, 414, 460, 468, 585, 598, 690, 780, 828, 897, 1035, 1170, 1196, 1380, 1495, 1511, 1794, 2070, 2340, 2691, 2990, 3022, 3588, 4140, 4485, 4533, 5382, 5980, 6044, 7555, 8970, 9066, 10764, 13455, 13599, 15110, 17940, 18132, 19643, 22665, 26910, 27198, 30220, 34753, 39286, 45330, 53820, 54396, 58929, 67995, 69506, 78572, 90660, 98215, 104259, 117858, 135990, 139012, 173765, 176787, 196430, 208518, 235716, 271980, 294645, 312777, 347530, 353574, 392860, 417036, 451789, 521295, 589290, 625554, 695060, 707148, 883935, 903578, 1042590, 1178580, 1251108, 1355367, 1563885, 1767870, 1807156, 2085180, 2258945, 2710734, 3127770, 3535740, 4066101, 4517890, 5421468, 6255540, 6776835, 8132202, 9035780, 13553670, 16264404, 20330505, 27107340, 40661010, 81322020]

約数ペア:

[(1, 81322020), (2, 40661010), (3, 27107340), (4, 20330505), (5, 16264404), (6, 13553670), (9, 9035780), (10, 8132202), (12, 6776835), (13, 6255540), (15, 5421468), (18, 4517890), (20, 4066101), (23, 3535740), (26, 3127770), (30, 2710734), (36, 2258945), (39, 2085180), (45, 1807156), (46, 1767870), (52, 1563885), (60, 1355367), (65, 1251108), (69, 1178580), (78, 1042590), (90, 903578), (92, 883935), (115, 707148), (117, 695060), (130, 625554), (138, 589290), (156, 521295), (180, 451789), (195, 417036), (207, 392860), (230, 353574), (234, 347530), (260, 312777), (276, 294645), (299, 271980), (345, 235716), (390, 208518), (414, 196430), (460, 176787), (468, 173765), (585, 139012), (598, 135990), (690, 117858), (780, 104259), (828, 98215), (897, 90660), (1035, 78572), (1170, 69506), (1196, 67995), (1380, 58929), (1495, 54396), (1511, 53820), (1794, 45330), (2070, 39286), (2340, 34753), (2691, 30220), (2990, 27198), (3022, 26910), (3588, 22665), (4140, 19643), (4485, 18132), (4533, 17940), (5382, 15110), (5980, 13599), (6044, 13455), (7555, 10764), (8970, 9066)]