81328728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{563}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 219824640

約数和(自身を除く): 138495912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 463, 563, 926, 1126, 1389, 1689, 1852, 2252, 2778, 3378, 3704, 4504, 5556, 6019, 6756, 7319, 11112, 12038, 13512, 14638, 18057, 21957, 24076, 29276, 36114, 43914, 48152, 58552, 72228, 87828, 144456, 175656, 260669, 521338, 782007, 1042676, 1564014, 2085352, 3128028, 3388697, 6256056, 6777394, 10166091, 13554788, 20332182, 27109576, 40664364, 81328728]

約数ペア:

[(1, 81328728), (2, 40664364), (3, 27109576), (4, 20332182), (6, 13554788), (8, 10166091), (12, 6777394), (13, 6256056), (24, 3388697), (26, 3128028), (39, 2085352), (52, 1564014), (78, 1042676), (104, 782007), (156, 521338), (312, 260669), (463, 175656), (563, 144456), (926, 87828), (1126, 72228), (1389, 58552), (1689, 48152), (1852, 43914), (2252, 36114), (2778, 29276), (3378, 24076), (3704, 21957), (4504, 18057), (5556, 14638), (6019, 13512), (6756, 12038), (7319, 11112)]