208494020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5189}}^1$

素因数の和:5253

約数の個数: 72

約数和(自身を含む): 521844120

約数和(自身を除く): 313350100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5189, 5740, 8036, 10045, 10378, 20090, 20756, 25945, 36323, 40180, 51890, 72646, 103780, 145292, 181615, 212749, 254261, 363230, 425498, 508522, 726460, 850996, 1017044, 1063745, 1271305, 1489243, 2127490, 2542610, 2978486, 4254980, 5085220, 5956972, 7446215, 10424701, 14892430, 20849402, 29784860, 41698804, 52123505, 104247010, 208494020]

約数ペア:

[(1, 208494020), (2, 104247010), (4, 52123505), (5, 41698804), (7, 29784860), (10, 20849402), (14, 14892430), (20, 10424701), (28, 7446215), (35, 5956972), (41, 5085220), (49, 4254980), (70, 2978486), (82, 2542610), (98, 2127490), (140, 1489243), (164, 1271305), (196, 1063745), (205, 1017044), (245, 850996), (287, 726460), (410, 508522), (490, 425498), (574, 363230), (820, 254261), (980, 212749), (1148, 181615), (1435, 145292), (2009, 103780), (2870, 72646), (4018, 51890), (5189, 40180), (5740, 36323), (8036, 25945), (10045, 20756), (10378, 20090)]