81722040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:597

約数の個数: 128

約数和(自身を含む): 262137600

約数和(自身を除く): 180415560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 73, 76, 95, 114, 120, 146, 152, 190, 219, 228, 285, 292, 365, 380, 438, 456, 491, 570, 584, 730, 760, 876, 982, 1095, 1140, 1387, 1460, 1473, 1752, 1964, 2190, 2280, 2455, 2774, 2920, 2946, 3928, 4161, 4380, 4910, 5548, 5892, 6935, 7365, 8322, 8760, 9329, 9820, 11096, 11784, 13870, 14730, 16644, 18658, 19640, 20805, 27740, 27987, 29460, 33288, 35843, 37316, 41610, 46645, 55480, 55974, 58920, 71686, 74632, 83220, 93290, 107529, 111948, 139935, 143372, 166440, 179215, 186580, 215058, 223896, 279870, 286744, 358430, 373160, 430116, 537645, 559740, 681017, 716860, 860232, 1075290, 1119480, 1362034, 1433720, 2043051, 2150580, 2724068, 3405085, 4086102, 4301160, 5448136, 6810170, 8172204, 10215255, 13620340, 16344408, 20430510, 27240680, 40861020, 81722040]

約数ペア:

[(1, 81722040), (2, 40861020), (3, 27240680), (4, 20430510), (5, 16344408), (6, 13620340), (8, 10215255), (10, 8172204), (12, 6810170), (15, 5448136), (19, 4301160), (20, 4086102), (24, 3405085), (30, 2724068), (38, 2150580), (40, 2043051), (57, 1433720), (60, 1362034), (73, 1119480), (76, 1075290), (95, 860232), (114, 716860), (120, 681017), (146, 559740), (152, 537645), (190, 430116), (219, 373160), (228, 358430), (285, 286744), (292, 279870), (365, 223896), (380, 215058), (438, 186580), (456, 179215), (491, 166440), (570, 143372), (584, 139935), (730, 111948), (760, 107529), (876, 93290), (982, 83220), (1095, 74632), (1140, 71686), (1387, 58920), (1460, 55974), (1473, 55480), (1752, 46645), (1964, 41610), (2190, 37316), (2280, 35843), (2455, 33288), (2774, 29460), (2920, 27987), (2946, 27740), (3928, 20805), (4161, 19640), (4380, 18658), (4910, 16644), (5548, 14730), (5892, 13870), (6935, 11784), (7365, 11096), (8322, 9820), (8760, 9329)]