72470728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 158397120

約数和(自身を除く): 85926392

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 193, 251, 374, 386, 502, 748, 772, 1004, 1496, 1544, 2008, 2123, 2761, 3281, 4246, 4267, 5522, 6562, 8492, 8534, 11044, 13124, 16984, 17068, 22088, 26248, 34136, 36091, 46937, 48443, 72182, 93874, 96886, 144364, 187748, 193772, 288728, 375496, 387544, 532873, 823531, 1065746, 1647062, 2131492, 3294124, 4262984, 6588248, 9058841, 18117682, 36235364, 72470728]

約数ペア:

[(1, 72470728), (2, 36235364), (4, 18117682), (8, 9058841), (11, 6588248), (17, 4262984), (22, 3294124), (34, 2131492), (44, 1647062), (68, 1065746), (88, 823531), (136, 532873), (187, 387544), (193, 375496), (251, 288728), (374, 193772), (386, 187748), (502, 144364), (748, 96886), (772, 93874), (1004, 72182), (1496, 48443), (1544, 46937), (2008, 36091), (2123, 34136), (2761, 26248), (3281, 22088), (4246, 17068), (4267, 16984), (5522, 13124), (6562, 11044), (8492, 8534)]