123215455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 167178816

約数和(自身を除く): 43963361

約数列:

[1, 5, 11, 41, 55, 101, 205, 451, 505, 541, 1111, 2255, 2705, 4141, 5555, 5951, 20705, 22181, 29755, 45551, 54641, 110905, 227755, 243991, 273205, 601051, 1219955, 2240281, 3005255, 11201405, 24643091, 123215455]

約数ペア:

[(1, 123215455), (5, 24643091), (11, 11201405), (41, 3005255), (55, 2240281), (101, 1219955), (205, 601051), (451, 273205), (505, 243991), (541, 227755), (1111, 110905), (2255, 54641), (2705, 45551), (4141, 29755), (5555, 22181), (5951, 20705)]