128857690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{12547}}^1$

素因数の和:12646

約数の個数: 32

約数和(自身を含む): 252967680

約数和(自身を除く): 124109990

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 130, 158, 395, 790, 1027, 2054, 5135, 10270, 12547, 25094, 62735, 125470, 163111, 326222, 815555, 991213, 1631110, 1982426, 4956065, 9912130, 12885769, 25771538, 64428845, 128857690]

約数ペア:

[(1, 128857690), (2, 64428845), (5, 25771538), (10, 12885769), (13, 9912130), (26, 4956065), (65, 1982426), (79, 1631110), (130, 991213), (158, 815555), (395, 326222), (790, 163111), (1027, 125470), (2054, 62735), (5135, 25094), (10270, 12547)]