20656735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 28283904

約数和(自身を除く): 7627169

約数列:

[1, 5, 11, 47, 55, 61, 131, 235, 305, 517, 655, 671, 1441, 2585, 2867, 3355, 6157, 7205, 7991, 14335, 30785, 31537, 39955, 67727, 87901, 157685, 338635, 375577, 439505, 1877885, 4131347, 20656735]

約数ペア:

[(1, 20656735), (5, 4131347), (11, 1877885), (47, 439505), (55, 375577), (61, 338635), (131, 157685), (235, 87901), (305, 67727), (517, 39955), (655, 31537), (671, 30785), (1441, 14335), (2585, 7991), (2867, 7205), (3355, 6157)]