128487520

素因数分解:

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

素因数の和:1400

約数の個数: 96

約数和(自身を含む): 351086400

約数和(自身を除く): 222598880

約数列:

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

約数ペア:

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