818581680

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{54139}}^1$

素因数の和:54168

約数の個数: 160

約数和(自身を含む): 3222412800

約数和(自身を除く): 2403831120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 54139, 108278, 162417, 216556, 270695, 324834, 378973, 433112, 487251, 541390, 649668, 757946, 812085, 866224, 974502, 1082780, 1136919, 1299336, 1461753, 1515892, 1624170, 1894865, 1949004, 2165560, 2273838, 2436255, 2598672, 2923506, 3031784, 3248340, 3410757, 3789730, 3898008, 4331120, 4547676, 4872510, 5684595, 5847012, 6063568, 6496680, 6821514, 7308765, 7579460, 7796016, 9095352, 9745020, 10232271, 11369190, 11694024, 12993360, 13643028, 14617530, 15158920, 17053785, 18190704, 19490040, 20464542, 22738380, 23388048, 27286056, 29235060, 30317840, 34107570, 38980080, 40929084, 45476760, 51161355, 54572112, 58470120, 68215140, 81858168, 90953520, 102322710, 116940240, 136430280, 163716336, 204645420, 272860560, 409290840, 818581680]

約数ペア:

[(1, 818581680), (2, 409290840), (3, 272860560), (4, 204645420), (5, 163716336), (6, 136430280), (7, 116940240), (8, 102322710), (9, 90953520), (10, 81858168), (12, 68215140), (14, 58470120), (15, 54572112), (16, 51161355), (18, 45476760), (20, 40929084), (21, 38980080), (24, 34107570), (27, 30317840), (28, 29235060), (30, 27286056), (35, 23388048), (36, 22738380), (40, 20464542), (42, 19490040), (45, 18190704), (48, 17053785), (54, 15158920), (56, 14617530), (60, 13643028), (63, 12993360), (70, 11694024), (72, 11369190), (80, 10232271), (84, 9745020), (90, 9095352), (105, 7796016), (108, 7579460), (112, 7308765), (120, 6821514), (126, 6496680), (135, 6063568), (140, 5847012), (144, 5684595), (168, 4872510), (180, 4547676), (189, 4331120), (210, 3898008), (216, 3789730), (240, 3410757), (252, 3248340), (270, 3031784), (280, 2923506), (315, 2598672), (336, 2436255), (360, 2273838), (378, 2165560), (420, 1949004), (432, 1894865), (504, 1624170), (540, 1515892), (560, 1461753), (630, 1299336), (720, 1136919), (756, 1082780), (840, 974502), (945, 866224), (1008, 812085), (1080, 757946), (1260, 649668), (1512, 541390), (1680, 487251), (1890, 433112), (2160, 378973), (2520, 324834), (3024, 270695), (3780, 216556), (5040, 162417), (7560, 108278), (15120, 54139)]