212668900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{647}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 489343680

約数和(自身を除く): 276674780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 173, 190, 346, 380, 475, 647, 692, 865, 950, 1294, 1730, 1900, 2588, 3235, 3287, 3460, 4325, 6470, 6574, 8650, 12293, 12940, 13148, 16175, 16435, 17300, 24586, 32350, 32870, 49172, 61465, 64700, 65740, 82175, 111931, 122930, 164350, 223862, 245860, 307325, 328700, 447724, 559655, 614650, 1119310, 1229300, 2126689, 2238620, 2798275, 4253378, 5596550, 8506756, 10633445, 11193100, 21266890, 42533780, 53167225, 106334450, 212668900]

約数ペア:

[(1, 212668900), (2, 106334450), (4, 53167225), (5, 42533780), (10, 21266890), (19, 11193100), (20, 10633445), (25, 8506756), (38, 5596550), (50, 4253378), (76, 2798275), (95, 2238620), (100, 2126689), (173, 1229300), (190, 1119310), (346, 614650), (380, 559655), (475, 447724), (647, 328700), (692, 307325), (865, 245860), (950, 223862), (1294, 164350), (1730, 122930), (1900, 111931), (2588, 82175), (3235, 65740), (3287, 64700), (3460, 61465), (4325, 49172), (6470, 32870), (6574, 32350), (8650, 24586), (12293, 17300), (12940, 16435), (13148, 16175)]