18195800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 49684320

約数和(自身を除く): 31488520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 50, 56, 70, 82, 100, 140, 164, 175, 200, 205, 280, 287, 317, 328, 350, 410, 574, 634, 700, 820, 1025, 1148, 1268, 1400, 1435, 1585, 1640, 2050, 2219, 2296, 2536, 2870, 3170, 4100, 4438, 5740, 6340, 7175, 7925, 8200, 8876, 11095, 11480, 12680, 12997, 14350, 15850, 17752, 22190, 25994, 28700, 31700, 44380, 51988, 55475, 57400, 63400, 64985, 88760, 90979, 103976, 110950, 129970, 181958, 221900, 259940, 324925, 363916, 443800, 454895, 519880, 649850, 727832, 909790, 1299700, 1819580, 2274475, 2599400, 3639160, 4548950, 9097900, 18195800]

約数ペア:

[(1, 18195800), (2, 9097900), (4, 4548950), (5, 3639160), (7, 2599400), (8, 2274475), (10, 1819580), (14, 1299700), (20, 909790), (25, 727832), (28, 649850), (35, 519880), (40, 454895), (41, 443800), (50, 363916), (56, 324925), (70, 259940), (82, 221900), (100, 181958), (140, 129970), (164, 110950), (175, 103976), (200, 90979), (205, 88760), (280, 64985), (287, 63400), (317, 57400), (328, 55475), (350, 51988), (410, 44380), (574, 31700), (634, 28700), (700, 25994), (820, 22190), (1025, 17752), (1148, 15850), (1268, 14350), (1400, 12997), (1435, 12680), (1585, 11480), (1640, 11095), (2050, 8876), (2219, 8200), (2296, 7925), (2536, 7175), (2870, 6340), (3170, 5740), (4100, 4438)]