81980790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{617}}^1$

素因数の和:773

約数の個数: 64

約数和(自身を含む): 203613696

約数和(自身を除く): 121632906

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 103, 129, 206, 215, 258, 309, 430, 515, 617, 618, 645, 1030, 1234, 1290, 1545, 1851, 3085, 3090, 3702, 4429, 6170, 8858, 9255, 13287, 18510, 22145, 26531, 26574, 44290, 53062, 63551, 66435, 79593, 127102, 132655, 132870, 159186, 190653, 265310, 317755, 381306, 397965, 635510, 795930, 953265, 1906530, 2732693, 5465386, 8198079, 13663465, 16396158, 27326930, 40990395, 81980790]

約数ペア:

[(1, 81980790), (2, 40990395), (3, 27326930), (5, 16396158), (6, 13663465), (10, 8198079), (15, 5465386), (30, 2732693), (43, 1906530), (86, 953265), (103, 795930), (129, 635510), (206, 397965), (215, 381306), (258, 317755), (309, 265310), (430, 190653), (515, 159186), (617, 132870), (618, 132655), (645, 127102), (1030, 79593), (1234, 66435), (1290, 63551), (1545, 53062), (1851, 44290), (3085, 26574), (3090, 26531), (3702, 22145), (4429, 18510), (6170, 13287), (8858, 9255)]