219481900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 560401632

約数和(自身を除く): 340919732

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 97, 100, 110, 121, 170, 187, 194, 220, 242, 275, 340, 374, 388, 425, 484, 485, 550, 605, 748, 850, 935, 970, 1067, 1100, 1210, 1331, 1649, 1700, 1870, 1940, 2057, 2134, 2420, 2425, 2662, 3025, 3298, 3740, 4114, 4268, 4675, 4850, 5324, 5335, 6050, 6596, 6655, 8228, 8245, 9350, 9700, 10285, 10670, 11737, 12100, 13310, 16490, 18139, 18700, 20570, 21340, 22627, 23474, 26620, 26675, 32980, 33275, 36278, 41140, 41225, 45254, 46948, 51425, 53350, 58685, 66550, 72556, 82450, 90508, 90695, 102850, 106700, 113135, 117370, 129107, 133100, 164900, 181390, 199529, 205700, 226270, 234740, 258214, 293425, 362780, 399058, 452540, 453475, 516428, 565675, 586850, 645535, 798116, 906950, 997645, 1131350, 1173700, 1291070, 1813900, 1995290, 2194819, 2262700, 2582140, 3227675, 3990580, 4389638, 4988225, 6455350, 8779276, 9976450, 10974095, 12910700, 19952900, 21948190, 43896380, 54870475, 109740950, 219481900]

約数ペア:

[(1, 219481900), (2, 109740950), (4, 54870475), (5, 43896380), (10, 21948190), (11, 19952900), (17, 12910700), (20, 10974095), (22, 9976450), (25, 8779276), (34, 6455350), (44, 4988225), (50, 4389638), (55, 3990580), (68, 3227675), (85, 2582140), (97, 2262700), (100, 2194819), (110, 1995290), (121, 1813900), (170, 1291070), (187, 1173700), (194, 1131350), (220, 997645), (242, 906950), (275, 798116), (340, 645535), (374, 586850), (388, 565675), (425, 516428), (484, 453475), (485, 452540), (550, 399058), (605, 362780), (748, 293425), (850, 258214), (935, 234740), (970, 226270), (1067, 205700), (1100, 199529), (1210, 181390), (1331, 164900), (1649, 133100), (1700, 129107), (1870, 117370), (1940, 113135), (2057, 106700), (2134, 102850), (2420, 90695), (2425, 90508), (2662, 82450), (3025, 72556), (3298, 66550), (3740, 58685), (4114, 53350), (4268, 51425), (4675, 46948), (4850, 45254), (5324, 41225), (5335, 41140), (6050, 36278), (6596, 33275), (6655, 32980), (8228, 26675), (8245, 26620), (9350, 23474), (9700, 22627), (10285, 21340), (10670, 20570), (11737, 18700), (12100, 18139), (13310, 16490)]