81468240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:777

約数の個数: 160

約数和(自身を含む): 293124096

約数和(自身を除く): 211655856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 71, 80, 84, 105, 112, 120, 140, 142, 168, 210, 213, 240, 280, 284, 336, 355, 420, 426, 497, 560, 568, 683, 710, 840, 852, 994, 1065, 1136, 1366, 1420, 1491, 1680, 1704, 1988, 2049, 2130, 2485, 2732, 2840, 2982, 3408, 3415, 3976, 4098, 4260, 4781, 4970, 5464, 5680, 5964, 6830, 7455, 7952, 8196, 8520, 9562, 9940, 10245, 10928, 11928, 13660, 14343, 14910, 16392, 17040, 19124, 19880, 20490, 23856, 23905, 27320, 28686, 29820, 32784, 38248, 39760, 40980, 47810, 48493, 54640, 57372, 59640, 71715, 76496, 81960, 95620, 96986, 114744, 119280, 143430, 145479, 163920, 191240, 193972, 229488, 242465, 286860, 290958, 339451, 382480, 387944, 484930, 573720, 581916, 678902, 727395, 775888, 969860, 1018353, 1147440, 1163832, 1357804, 1454790, 1697255, 1939720, 2036706, 2327664, 2715608, 2909580, 3394510, 3879440, 4073412, 5091765, 5431216, 5819160, 6789020, 8146824, 10183530, 11638320, 13578040, 16293648, 20367060, 27156080, 40734120, 81468240]

約数ペア:

[(1, 81468240), (2, 40734120), (3, 27156080), (4, 20367060), (5, 16293648), (6, 13578040), (7, 11638320), (8, 10183530), (10, 8146824), (12, 6789020), (14, 5819160), (15, 5431216), (16, 5091765), (20, 4073412), (21, 3879440), (24, 3394510), (28, 2909580), (30, 2715608), (35, 2327664), (40, 2036706), (42, 1939720), (48, 1697255), (56, 1454790), (60, 1357804), (70, 1163832), (71, 1147440), (80, 1018353), (84, 969860), (105, 775888), (112, 727395), (120, 678902), (140, 581916), (142, 573720), (168, 484930), (210, 387944), (213, 382480), (240, 339451), (280, 290958), (284, 286860), (336, 242465), (355, 229488), (420, 193972), (426, 191240), (497, 163920), (560, 145479), (568, 143430), (683, 119280), (710, 114744), (840, 96986), (852, 95620), (994, 81960), (1065, 76496), (1136, 71715), (1366, 59640), (1420, 57372), (1491, 54640), (1680, 48493), (1704, 47810), (1988, 40980), (2049, 39760), (2130, 38248), (2485, 32784), (2732, 29820), (2840, 28686), (2982, 27320), (3408, 23905), (3415, 23856), (3976, 20490), (4098, 19880), (4260, 19124), (4781, 17040), (4970, 16392), (5464, 14910), (5680, 14343), (5964, 13660), (6830, 11928), (7455, 10928), (7952, 10245), (8196, 9940), (8520, 9562)]