80898050

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 155561472

約数和(自身を除く): 74663422

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 191, 197, 215, 382, 394, 430, 955, 985, 1075, 1910, 1970, 2150, 4775, 4925, 8213, 8471, 9550, 9850, 16426, 16942, 37627, 41065, 42355, 75254, 82130, 84710, 188135, 205325, 211775, 376270, 410650, 423550, 940675, 1617961, 1881350, 3235922, 8089805, 16179610, 40449025, 80898050]

約数ペア:

[(1, 80898050), (2, 40449025), (5, 16179610), (10, 8089805), (25, 3235922), (43, 1881350), (50, 1617961), (86, 940675), (191, 423550), (197, 410650), (215, 376270), (382, 211775), (394, 205325), (430, 188135), (955, 84710), (985, 82130), (1075, 75254), (1910, 42355), (1970, 41065), (2150, 37627), (4775, 16942), (4925, 16426), (8213, 9850), (8471, 9550)]