18167804920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{31583}}^1$

素因数の和:31864

約数の個数: 64

約数和(自身を含む): 41649189120

約数和(自身を除く): 23481384200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 197, 292, 365, 394, 584, 730, 788, 985, 1460, 1576, 1970, 2920, 3940, 7880, 14381, 28762, 31583, 57524, 63166, 71905, 115048, 126332, 143810, 157915, 252664, 287620, 315830, 575240, 631660, 1263320, 2305559, 4611118, 6221851, 9222236, 11527795, 12443702, 18444472, 23055590, 24887404, 31109255, 46111180, 49774808, 62218510, 92222360, 124437020, 248874040, 454195123, 908390246, 1816780492, 2270975615, 3633560984, 4541951230, 9083902460, 18167804920]

約数ペア:

[(1, 18167804920), (2, 9083902460), (4, 4541951230), (5, 3633560984), (8, 2270975615), (10, 1816780492), (20, 908390246), (40, 454195123), (73, 248874040), (146, 124437020), (197, 92222360), (292, 62218510), (365, 49774808), (394, 46111180), (584, 31109255), (730, 24887404), (788, 23055590), (985, 18444472), (1460, 12443702), (1576, 11527795), (1970, 9222236), (2920, 6221851), (3940, 4611118), (7880, 2305559), (14381, 1263320), (28762, 631660), (31583, 575240), (57524, 315830), (63166, 287620), (71905, 252664), (115048, 157915), (126332, 143810)]