31410920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 73483200

約数和(自身を除く): 42072280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 107, 164, 179, 205, 214, 328, 358, 410, 428, 535, 716, 820, 856, 895, 1070, 1432, 1640, 1790, 2140, 3580, 4280, 4387, 7160, 7339, 8774, 14678, 17548, 19153, 21935, 29356, 35096, 36695, 38306, 43870, 58712, 73390, 76612, 87740, 95765, 146780, 153224, 175480, 191530, 293560, 383060, 766120, 785273, 1570546, 3141092, 3926365, 6282184, 7852730, 15705460, 31410920]

約数ペア:

[(1, 31410920), (2, 15705460), (4, 7852730), (5, 6282184), (8, 3926365), (10, 3141092), (20, 1570546), (40, 785273), (41, 766120), (82, 383060), (107, 293560), (164, 191530), (179, 175480), (205, 153224), (214, 146780), (328, 95765), (358, 87740), (410, 76612), (428, 73390), (535, 58712), (716, 43870), (820, 38306), (856, 36695), (895, 35096), (1070, 29356), (1432, 21935), (1640, 19153), (1790, 17548), (2140, 14678), (3580, 8774), (4280, 7339), (4387, 7160)]