18480400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{983}}^1$

素因数の和:1048

約数の個数: 60

約数和(自身を含む): 45389952

約数和(自身を除く): 26909552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 983, 1175, 1880, 1966, 2350, 3760, 3932, 4700, 4915, 7864, 9400, 9830, 15728, 18800, 19660, 24575, 39320, 46201, 49150, 78640, 92402, 98300, 184804, 196600, 231005, 369608, 393200, 462010, 739216, 924020, 1155025, 1848040, 2310050, 3696080, 4620100, 9240200, 18480400]

約数ペア:

[(1, 18480400), (2, 9240200), (4, 4620100), (5, 3696080), (8, 2310050), (10, 1848040), (16, 1155025), (20, 924020), (25, 739216), (40, 462010), (47, 393200), (50, 369608), (80, 231005), (94, 196600), (100, 184804), (188, 98300), (200, 92402), (235, 78640), (376, 49150), (400, 46201), (470, 39320), (752, 24575), (940, 19660), (983, 18800), (1175, 15728), (1880, 9830), (1966, 9400), (2350, 7864), (3760, 4915), (3932, 4700)]