81666800

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3347}}^1$

素因数の和:3426

約数の個数: 60

約数和(自身を含む): 199480536

約数和(自身を除く): 117813736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 976, 1220, 1525, 2440, 3050, 3347, 4880, 6100, 6694, 12200, 13388, 16735, 24400, 26776, 33470, 53552, 66940, 83675, 133880, 167350, 204167, 267760, 334700, 408334, 669400, 816668, 1020835, 1338800, 1633336, 2041670, 3266672, 4083340, 5104175, 8166680, 10208350, 16333360, 20416700, 40833400, 81666800]

約数ペア:

[(1, 81666800), (2, 40833400), (4, 20416700), (5, 16333360), (8, 10208350), (10, 8166680), (16, 5104175), (20, 4083340), (25, 3266672), (40, 2041670), (50, 1633336), (61, 1338800), (80, 1020835), (100, 816668), (122, 669400), (200, 408334), (244, 334700), (305, 267760), (400, 204167), (488, 167350), (610, 133880), (976, 83675), (1220, 66940), (1525, 53552), (2440, 33470), (3050, 26776), (3347, 24400), (4880, 16735), (6100, 13388), (6694, 12200)]