81668916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:534

約数の個数: 144

約数和(自身を含む): 255615360

約数和(自身を除く): 173946444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 37, 38, 42, 57, 63, 74, 76, 84, 111, 114, 126, 133, 148, 171, 222, 228, 252, 259, 266, 333, 342, 399, 444, 461, 518, 532, 666, 684, 703, 777, 798, 922, 1036, 1197, 1332, 1383, 1406, 1554, 1596, 1844, 2109, 2331, 2394, 2766, 2812, 3108, 3227, 4149, 4218, 4662, 4788, 4921, 5532, 6327, 6454, 8298, 8436, 8759, 9324, 9681, 9842, 12654, 12908, 14763, 16596, 17057, 17518, 19362, 19684, 25308, 26277, 29043, 29526, 34114, 35036, 38724, 44289, 51171, 52554, 58086, 59052, 61313, 68228, 78831, 88578, 102342, 105108, 116172, 119399, 122626, 153513, 157662, 177156, 183939, 204684, 238798, 245252, 307026, 315324, 324083, 358197, 367878, 477596, 551817, 614052, 648166, 716394, 735756, 972249, 1074591, 1103634, 1296332, 1432788, 1944498, 2149182, 2207268, 2268581, 2916747, 3888996, 4298364, 4537162, 5833494, 6805743, 9074324, 11666988, 13611486, 20417229, 27222972, 40834458, 81668916]

約数ペア:

[(1, 81668916), (2, 40834458), (3, 27222972), (4, 20417229), (6, 13611486), (7, 11666988), (9, 9074324), (12, 6805743), (14, 5833494), (18, 4537162), (19, 4298364), (21, 3888996), (28, 2916747), (36, 2268581), (37, 2207268), (38, 2149182), (42, 1944498), (57, 1432788), (63, 1296332), (74, 1103634), (76, 1074591), (84, 972249), (111, 735756), (114, 716394), (126, 648166), (133, 614052), (148, 551817), (171, 477596), (222, 367878), (228, 358197), (252, 324083), (259, 315324), (266, 307026), (333, 245252), (342, 238798), (399, 204684), (444, 183939), (461, 177156), (518, 157662), (532, 153513), (666, 122626), (684, 119399), (703, 116172), (777, 105108), (798, 102342), (922, 88578), (1036, 78831), (1197, 68228), (1332, 61313), (1383, 59052), (1406, 58086), (1554, 52554), (1596, 51171), (1844, 44289), (2109, 38724), (2331, 35036), (2394, 34114), (2766, 29526), (2812, 29043), (3108, 26277), (3227, 25308), (4149, 19684), (4218, 19362), (4662, 17518), (4788, 17057), (4921, 16596), (5532, 14763), (6327, 12908), (6454, 12654), (8298, 9842), (8436, 9681), (8759, 9324)]