157021930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{19801}}^1$

素因数の和:19882

約数の個数: 32

約数和(自身を含む): 309386448

約数和(自身を除く): 152364518

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 19801, 39602, 99005, 198010, 257413, 514826, 1207861, 1287065, 2415722, 2574130, 6039305, 12078610, 15702193, 31404386, 78510965, 157021930]

約数ペア:

[(1, 157021930), (2, 78510965), (5, 31404386), (10, 15702193), (13, 12078610), (26, 6039305), (61, 2574130), (65, 2415722), (122, 1287065), (130, 1207861), (305, 514826), (610, 257413), (793, 198010), (1586, 99005), (3965, 39602), (7930, 19801)]