278345540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{55009}}^1$

素因数の和:55052

約数の個数: 48

約数和(自身を含む): 665400960

約数和(自身を除く): 387055420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 55009, 110018, 220036, 275045, 550090, 605099, 1100180, 1210198, 1265207, 2420396, 2530414, 3025495, 5060828, 6050990, 6326035, 12101980, 12652070, 13917277, 25304140, 27834554, 55669108, 69586385, 139172770, 278345540]

約数ペア:

[(1, 278345540), (2, 139172770), (4, 69586385), (5, 55669108), (10, 27834554), (11, 25304140), (20, 13917277), (22, 12652070), (23, 12101980), (44, 6326035), (46, 6050990), (55, 5060828), (92, 3025495), (110, 2530414), (115, 2420396), (220, 1265207), (230, 1210198), (253, 1100180), (460, 605099), (506, 550090), (1012, 275045), (1265, 220036), (2530, 110018), (5060, 55009)]