71979830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 147184128

約数和(自身を除く): 75204298

約数列:

[1, 2, 5, 10, 13, 26, 31, 53, 62, 65, 106, 130, 155, 265, 310, 337, 403, 530, 674, 689, 806, 1378, 1643, 1685, 2015, 3286, 3370, 3445, 4030, 4381, 6890, 8215, 8762, 10447, 16430, 17861, 20894, 21359, 21905, 35722, 42718, 43810, 52235, 89305, 104470, 106795, 135811, 178610, 213590, 232193, 271622, 464386, 553691, 679055, 1107382, 1160965, 1358110, 2321930, 2768455, 5536910, 7197983, 14395966, 35989915, 71979830]

約数ペア:

[(1, 71979830), (2, 35989915), (5, 14395966), (10, 7197983), (13, 5536910), (26, 2768455), (31, 2321930), (53, 1358110), (62, 1160965), (65, 1107382), (106, 679055), (130, 553691), (155, 464386), (265, 271622), (310, 232193), (337, 213590), (403, 178610), (530, 135811), (674, 106795), (689, 104470), (806, 89305), (1378, 52235), (1643, 43810), (1685, 42718), (2015, 35722), (3286, 21905), (3370, 21359), (3445, 20894), (4030, 17861), (4381, 16430), (6890, 10447), (8215, 8762)]