279291260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 626766336

約数和(自身を除く): 347475076

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 361, 380, 383, 404, 505, 722, 766, 1010, 1444, 1532, 1805, 1915, 1919, 2020, 3610, 3830, 3838, 7220, 7277, 7660, 7676, 9595, 14554, 19190, 29108, 36385, 36461, 38380, 38683, 72770, 72922, 77366, 138263, 145540, 145844, 154732, 182305, 193415, 276526, 364610, 386830, 553052, 691315, 729220, 734977, 773660, 1382630, 1469954, 2765260, 2939908, 3674885, 7349770, 13964563, 14699540, 27929126, 55858252, 69822815, 139645630, 279291260]

約数ペア:

[(1, 279291260), (2, 139645630), (4, 69822815), (5, 55858252), (10, 27929126), (19, 14699540), (20, 13964563), (38, 7349770), (76, 3674885), (95, 2939908), (101, 2765260), (190, 1469954), (202, 1382630), (361, 773660), (380, 734977), (383, 729220), (404, 691315), (505, 553052), (722, 386830), (766, 364610), (1010, 276526), (1444, 193415), (1532, 182305), (1805, 154732), (1915, 145844), (1919, 145540), (2020, 138263), (3610, 77366), (3830, 72922), (3838, 72770), (7220, 38683), (7277, 38380), (7660, 36461), (7676, 36385), (9595, 29108), (14554, 19190)]