256654720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{971}}^1$

素因数の和:1056

約数の個数: 128

約数和(自身を含む): 713836800

約数和(自身を除く): 457182080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 112, 118, 128, 140, 160, 224, 236, 280, 295, 320, 413, 448, 472, 560, 590, 640, 826, 896, 944, 971, 1120, 1180, 1652, 1888, 1942, 2065, 2240, 2360, 3304, 3776, 3884, 4130, 4480, 4720, 4855, 6608, 6797, 7552, 7768, 8260, 9440, 9710, 13216, 13594, 15536, 16520, 18880, 19420, 26432, 27188, 31072, 33040, 33985, 37760, 38840, 52864, 54376, 57289, 62144, 66080, 67970, 77680, 108752, 114578, 124288, 132160, 135940, 155360, 217504, 229156, 264320, 271880, 286445, 310720, 401023, 435008, 458312, 543760, 572890, 621440, 802046, 870016, 916624, 1087520, 1145780, 1604092, 1833248, 2005115, 2175040, 2291560, 3208184, 3666496, 4010230, 4350080, 4583120, 6416368, 7332992, 8020460, 9166240, 12832736, 16040920, 18332480, 25665472, 32081840, 36664960, 51330944, 64163680, 128327360, 256654720]

約数ペア:

[(1, 256654720), (2, 128327360), (4, 64163680), (5, 51330944), (7, 36664960), (8, 32081840), (10, 25665472), (14, 18332480), (16, 16040920), (20, 12832736), (28, 9166240), (32, 8020460), (35, 7332992), (40, 6416368), (56, 4583120), (59, 4350080), (64, 4010230), (70, 3666496), (80, 3208184), (112, 2291560), (118, 2175040), (128, 2005115), (140, 1833248), (160, 1604092), (224, 1145780), (236, 1087520), (280, 916624), (295, 870016), (320, 802046), (413, 621440), (448, 572890), (472, 543760), (560, 458312), (590, 435008), (640, 401023), (826, 310720), (896, 286445), (944, 271880), (971, 264320), (1120, 229156), (1180, 217504), (1652, 155360), (1888, 135940), (1942, 132160), (2065, 124288), (2240, 114578), (2360, 108752), (3304, 77680), (3776, 67970), (3884, 66080), (4130, 62144), (4480, 57289), (4720, 54376), (4855, 52864), (6608, 38840), (6797, 37760), (7552, 33985), (7768, 33040), (8260, 31072), (9440, 27188), (9710, 26432), (13216, 19420), (13594, 18880), (15536, 16520)]