198495920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2791}}^1$

素因数の和:2938

約数の個数: 80

約数和(自身を含む): 531775488

約数和(自身を除く): 333279568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1270, 1778, 2032, 2540, 2791, 3556, 4445, 5080, 5582, 7112, 8890, 10160, 11164, 13955, 14224, 17780, 19537, 22328, 27910, 35560, 39074, 44656, 55820, 71120, 78148, 97685, 111640, 156296, 195370, 223280, 312592, 354457, 390740, 708914, 781480, 1417828, 1562960, 1772285, 2481199, 2835656, 3544570, 4962398, 5671312, 7089140, 9924796, 12405995, 14178280, 19849592, 24811990, 28356560, 39699184, 49623980, 99247960, 198495920]

約数ペア:

[(1, 198495920), (2, 99247960), (4, 49623980), (5, 39699184), (7, 28356560), (8, 24811990), (10, 19849592), (14, 14178280), (16, 12405995), (20, 9924796), (28, 7089140), (35, 5671312), (40, 4962398), (56, 3544570), (70, 2835656), (80, 2481199), (112, 1772285), (127, 1562960), (140, 1417828), (254, 781480), (280, 708914), (508, 390740), (560, 354457), (635, 312592), (889, 223280), (1016, 195370), (1270, 156296), (1778, 111640), (2032, 97685), (2540, 78148), (2791, 71120), (3556, 55820), (4445, 44656), (5080, 39074), (5582, 35560), (7112, 27910), (8890, 22328), (10160, 19537), (11164, 17780), (13955, 14224)]