221062520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{112787}}^1$

素因数の和:112812

約数の個数: 48

約数和(自身を含む): 578602440

約数和(自身を除く): 357539920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 112787, 225574, 451148, 563935, 789509, 902296, 1127870, 1579018, 2255740, 3158036, 3947545, 4511480, 5526563, 6316072, 7895090, 11053126, 15790180, 22106252, 27632815, 31580360, 44212504, 55265630, 110531260, 221062520]

約数ペア:

[(1, 221062520), (2, 110531260), (4, 55265630), (5, 44212504), (7, 31580360), (8, 27632815), (10, 22106252), (14, 15790180), (20, 11053126), (28, 7895090), (35, 6316072), (40, 5526563), (49, 4511480), (56, 3947545), (70, 3158036), (98, 2255740), (140, 1579018), (196, 1127870), (245, 902296), (280, 789509), (392, 563935), (490, 451148), (980, 225574), (1960, 112787)]