256975040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1289}}^1$

素因数の和:1402

約数の個数: 112

約数和(自身を含む): 707745600

約数和(自身を除く): 450770560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 140, 160, 178, 224, 280, 320, 356, 445, 448, 560, 623, 712, 890, 1120, 1246, 1289, 1424, 1780, 2240, 2492, 2578, 2848, 3115, 3560, 4984, 5156, 5696, 6230, 6445, 7120, 9023, 9968, 10312, 12460, 12890, 14240, 18046, 19936, 20624, 24920, 25780, 28480, 36092, 39872, 41248, 45115, 49840, 51560, 72184, 82496, 90230, 99680, 103120, 114721, 144368, 180460, 199360, 206240, 229442, 288736, 360920, 412480, 458884, 573605, 577472, 721840, 803047, 917768, 1147210, 1443680, 1606094, 1835536, 2294420, 2887360, 3212188, 3671072, 4015235, 4588840, 6424376, 7342144, 8030470, 9177680, 12848752, 16060940, 18355360, 25697504, 32121880, 36710720, 51395008, 64243760, 128487520, 256975040]

約数ペア:

[(1, 256975040), (2, 128487520), (4, 64243760), (5, 51395008), (7, 36710720), (8, 32121880), (10, 25697504), (14, 18355360), (16, 16060940), (20, 12848752), (28, 9177680), (32, 8030470), (35, 7342144), (40, 6424376), (56, 4588840), (64, 4015235), (70, 3671072), (80, 3212188), (89, 2887360), (112, 2294420), (140, 1835536), (160, 1606094), (178, 1443680), (224, 1147210), (280, 917768), (320, 803047), (356, 721840), (445, 577472), (448, 573605), (560, 458884), (623, 412480), (712, 360920), (890, 288736), (1120, 229442), (1246, 206240), (1289, 199360), (1424, 180460), (1780, 144368), (2240, 114721), (2492, 103120), (2578, 99680), (2848, 90230), (3115, 82496), (3560, 72184), (4984, 51560), (5156, 49840), (5696, 45115), (6230, 41248), (6445, 39872), (7120, 36092), (9023, 28480), (9968, 25780), (10312, 24920), (12460, 20624), (12890, 19936), (14240, 18046)]