209300900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:845

約数の個数: 72

約数和(自身を含む): 472469760

約数和(自身を除く): 263168860

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 71, 82, 100, 142, 164, 205, 284, 355, 410, 710, 719, 820, 1025, 1420, 1438, 1775, 2050, 2876, 2911, 3550, 3595, 4100, 5822, 7100, 7190, 11644, 14380, 14555, 17975, 29110, 29479, 35950, 51049, 58220, 58958, 71900, 72775, 102098, 117916, 145550, 147395, 204196, 255245, 291100, 294790, 510490, 589580, 736975, 1020980, 1276225, 1473950, 2093009, 2552450, 2947900, 4186018, 5104900, 8372036, 10465045, 20930090, 41860180, 52325225, 104650450, 209300900]

約数ペア:

[(1, 209300900), (2, 104650450), (4, 52325225), (5, 41860180), (10, 20930090), (20, 10465045), (25, 8372036), (41, 5104900), (50, 4186018), (71, 2947900), (82, 2552450), (100, 2093009), (142, 1473950), (164, 1276225), (205, 1020980), (284, 736975), (355, 589580), (410, 510490), (710, 294790), (719, 291100), (820, 255245), (1025, 204196), (1420, 147395), (1438, 145550), (1775, 117916), (2050, 102098), (2876, 72775), (2911, 71900), (3550, 58958), (3595, 58220), (4100, 51049), (5822, 35950), (7100, 29479), (7190, 29110), (11644, 17975), (14380, 14555)]