280205657838

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{310229}}^1$

素因数の和:310414

約数の個数: 72

約数和(自身を含む): 645359059800

約数和(自身を除く): 365153401962

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 139, 171, 278, 342, 361, 417, 722, 834, 1083, 1251, 2166, 2502, 2641, 3249, 5282, 6498, 7923, 15846, 23769, 47538, 50179, 100358, 150537, 301074, 310229, 451611, 620458, 903222, 930687, 1861374, 2792061, 5584122, 5894351, 11788702, 17683053, 35366106, 43121831, 53049159, 86243662, 106098318, 111992669, 129365493, 223985338, 258730986, 335978007, 388096479, 671956014, 776192958, 819314789, 1007934021, 1638629578, 2015868042, 2457944367, 4915888734, 7373833101, 14747666202, 15566980991, 31133961982, 46700942973, 93401885946, 140102828919, 280205657838]

約数ペア:

[(1, 280205657838), (2, 140102828919), (3, 93401885946), (6, 46700942973), (9, 31133961982), (18, 15566980991), (19, 14747666202), (38, 7373833101), (57, 4915888734), (114, 2457944367), (139, 2015868042), (171, 1638629578), (278, 1007934021), (342, 819314789), (361, 776192958), (417, 671956014), (722, 388096479), (834, 335978007), (1083, 258730986), (1251, 223985338), (2166, 129365493), (2502, 111992669), (2641, 106098318), (3249, 86243662), (5282, 53049159), (6498, 43121831), (7923, 35366106), (15846, 17683053), (23769, 11788702), (47538, 5894351), (50179, 5584122), (100358, 2792061), (150537, 1861374), (301074, 930687), (310229, 903222), (451611, 620458)]