161418680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4519}}^1$

素因数の和:4596

約数の個数: 64

約数和(自身を含む): 390528000

約数和(自身を除く): 229109320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1880, 3572, 4465, 4519, 7144, 8930, 9038, 17860, 18076, 22595, 35720, 36152, 45190, 85861, 90380, 171722, 180760, 212393, 343444, 424786, 429305, 686888, 849572, 858610, 1061965, 1699144, 1717220, 2123930, 3434440, 4035467, 4247860, 8070934, 8495720, 16141868, 20177335, 32283736, 40354670, 80709340, 161418680]

約数ペア:

[(1, 161418680), (2, 80709340), (4, 40354670), (5, 32283736), (8, 20177335), (10, 16141868), (19, 8495720), (20, 8070934), (38, 4247860), (40, 4035467), (47, 3434440), (76, 2123930), (94, 1717220), (95, 1699144), (152, 1061965), (188, 858610), (190, 849572), (235, 686888), (376, 429305), (380, 424786), (470, 343444), (760, 212393), (893, 180760), (940, 171722), (1786, 90380), (1880, 85861), (3572, 45190), (4465, 36152), (4519, 35720), (7144, 22595), (8930, 18076), (9038, 17860)]