49778920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 116121600

約数和(自身を除く): 66342680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 239, 254, 328, 410, 478, 508, 635, 820, 956, 1016, 1195, 1270, 1640, 1912, 2390, 2540, 4780, 5080, 5207, 9560, 9799, 10414, 19598, 20828, 26035, 30353, 39196, 41656, 48995, 52070, 60706, 78392, 97990, 104140, 121412, 151765, 195980, 208280, 242824, 303530, 391960, 607060, 1214120, 1244473, 2488946, 4977892, 6222365, 9955784, 12444730, 24889460, 49778920]

約数ペア:

[(1, 49778920), (2, 24889460), (4, 12444730), (5, 9955784), (8, 6222365), (10, 4977892), (20, 2488946), (40, 1244473), (41, 1214120), (82, 607060), (127, 391960), (164, 303530), (205, 242824), (239, 208280), (254, 195980), (328, 151765), (410, 121412), (478, 104140), (508, 97990), (635, 78392), (820, 60706), (956, 52070), (1016, 48995), (1195, 41656), (1270, 39196), (1640, 30353), (1912, 26035), (2390, 20828), (2540, 19598), (4780, 10414), (5080, 9799), (5207, 9560)]