72581840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{643}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 181113408

約数和(自身を除く): 108531568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 83, 85, 136, 166, 170, 272, 332, 340, 415, 643, 664, 680, 830, 1286, 1328, 1360, 1411, 1660, 2572, 2822, 3215, 3320, 5144, 5644, 6430, 6640, 7055, 10288, 10931, 11288, 12860, 14110, 21862, 22576, 25720, 28220, 43724, 51440, 53369, 54655, 56440, 87448, 106738, 109310, 112880, 174896, 213476, 218620, 266845, 426952, 437240, 533690, 853904, 874480, 907273, 1067380, 1814546, 2134760, 3629092, 4269520, 4536365, 7258184, 9072730, 14516368, 18145460, 36290920, 72581840]

約数ペア:

[(1, 72581840), (2, 36290920), (4, 18145460), (5, 14516368), (8, 9072730), (10, 7258184), (16, 4536365), (17, 4269520), (20, 3629092), (34, 2134760), (40, 1814546), (68, 1067380), (80, 907273), (83, 874480), (85, 853904), (136, 533690), (166, 437240), (170, 426952), (272, 266845), (332, 218620), (340, 213476), (415, 174896), (643, 112880), (664, 109310), (680, 106738), (830, 87448), (1286, 56440), (1328, 54655), (1360, 53369), (1411, 51440), (1660, 43724), (2572, 28220), (2822, 25720), (3215, 22576), (3320, 21862), (5144, 14110), (5644, 12860), (6430, 11288), (6640, 10931), (7055, 10288)]