221865380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:609

約数の個数: 96

約数和(自身を含む): 532224000

約数和(自身を除く): 310358620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 47, 55, 86, 94, 110, 172, 188, 215, 220, 235, 430, 470, 473, 499, 517, 860, 940, 946, 998, 1034, 1892, 1996, 2021, 2068, 2365, 2495, 2585, 4042, 4730, 4990, 5170, 5489, 8084, 9460, 9980, 10105, 10340, 10978, 20210, 21457, 21956, 22231, 23453, 27445, 40420, 42914, 44462, 46906, 54890, 85828, 88924, 93812, 107285, 109780, 111155, 117265, 214570, 222310, 234530, 236027, 257983, 429140, 444620, 469060, 472054, 515966, 944108, 1008479, 1031932, 1180135, 1289915, 2016958, 2360270, 2579830, 4033916, 4720540, 5042395, 5159660, 10084790, 11093269, 20169580, 22186538, 44373076, 55466345, 110932690, 221865380]

約数ペア:

[(1, 221865380), (2, 110932690), (4, 55466345), (5, 44373076), (10, 22186538), (11, 20169580), (20, 11093269), (22, 10084790), (43, 5159660), (44, 5042395), (47, 4720540), (55, 4033916), (86, 2579830), (94, 2360270), (110, 2016958), (172, 1289915), (188, 1180135), (215, 1031932), (220, 1008479), (235, 944108), (430, 515966), (470, 472054), (473, 469060), (499, 444620), (517, 429140), (860, 257983), (940, 236027), (946, 234530), (998, 222310), (1034, 214570), (1892, 117265), (1996, 111155), (2021, 109780), (2068, 107285), (2365, 93812), (2495, 88924), (2585, 85828), (4042, 54890), (4730, 46906), (4990, 44462), (5170, 42914), (5489, 40420), (8084, 27445), (9460, 23453), (9980, 22231), (10105, 21956), (10340, 21457), (10978, 20210)]