78716440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 207360000

約数和(自身を除く): 128643560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 31, 40, 44, 55, 58, 62, 88, 110, 116, 124, 145, 155, 199, 220, 232, 248, 290, 310, 319, 341, 398, 440, 580, 620, 638, 682, 796, 899, 995, 1160, 1240, 1276, 1364, 1592, 1595, 1705, 1798, 1990, 2189, 2552, 2728, 3190, 3410, 3596, 3980, 4378, 4495, 5771, 6169, 6380, 6820, 7192, 7960, 8756, 8990, 9889, 10945, 11542, 12338, 12760, 13640, 17512, 17980, 19778, 21890, 23084, 24676, 28855, 30845, 35960, 39556, 43780, 46168, 49352, 49445, 57710, 61690, 63481, 67859, 79112, 87560, 98890, 115420, 123380, 126962, 135718, 178901, 197780, 230840, 246760, 253924, 271436, 317405, 339295, 357802, 395560, 507848, 542872, 634810, 678590, 715604, 894505, 1269620, 1357180, 1431208, 1789010, 1967911, 2539240, 2714360, 3578020, 3935822, 7156040, 7871644, 9839555, 15743288, 19679110, 39358220, 78716440]

約数ペア:

[(1, 78716440), (2, 39358220), (4, 19679110), (5, 15743288), (8, 9839555), (10, 7871644), (11, 7156040), (20, 3935822), (22, 3578020), (29, 2714360), (31, 2539240), (40, 1967911), (44, 1789010), (55, 1431208), (58, 1357180), (62, 1269620), (88, 894505), (110, 715604), (116, 678590), (124, 634810), (145, 542872), (155, 507848), (199, 395560), (220, 357802), (232, 339295), (248, 317405), (290, 271436), (310, 253924), (319, 246760), (341, 230840), (398, 197780), (440, 178901), (580, 135718), (620, 126962), (638, 123380), (682, 115420), (796, 98890), (899, 87560), (995, 79112), (1160, 67859), (1240, 63481), (1276, 61690), (1364, 57710), (1592, 49445), (1595, 49352), (1705, 46168), (1798, 43780), (1990, 39556), (2189, 35960), (2552, 30845), (2728, 28855), (3190, 24676), (3410, 23084), (3596, 21890), (3980, 19778), (4378, 17980), (4495, 17512), (5771, 13640), (6169, 12760), (6380, 12338), (6820, 11542), (7192, 10945), (7960, 9889), (8756, 8990)]