9978773600

素因数分解:

$2^5\times 5^2\times {\mathrm{997}}^1\times {\mathrm{12511}}^1$

素因数の和:13528

約数の個数: 72

約数和(自身を含む): 24387064128

約数和(自身を除く): 14408290528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 997, 1994, 3988, 4985, 7976, 9970, 12511, 15952, 19940, 24925, 25022, 31904, 39880, 49850, 50044, 62555, 79760, 99700, 100088, 125110, 159520, 199400, 200176, 250220, 312775, 398800, 400352, 500440, 625550, 797600, 1000880, 1251100, 2001760, 2502200, 5004400, 10008800, 12473467, 24946934, 49893868, 62367335, 99787736, 124734670, 199575472, 249469340, 311836675, 399150944, 498938680, 623673350, 997877360, 1247346700, 1995754720, 2494693400, 4989386800, 9978773600]

約数ペア:

[(1, 9978773600), (2, 4989386800), (4, 2494693400), (5, 1995754720), (8, 1247346700), (10, 997877360), (16, 623673350), (20, 498938680), (25, 399150944), (32, 311836675), (40, 249469340), (50, 199575472), (80, 124734670), (100, 99787736), (160, 62367335), (200, 49893868), (400, 24946934), (800, 12473467), (997, 10008800), (1994, 5004400), (3988, 2502200), (4985, 2001760), (7976, 1251100), (9970, 1000880), (12511, 797600), (15952, 625550), (19940, 500440), (24925, 400352), (25022, 398800), (31904, 312775), (39880, 250220), (49850, 200176), (50044, 199400), (62555, 159520), (79760, 125110), (99700, 100088)]