20734304890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1\times {\mathrm{102701}}^1$

素因数の和:104274

約数の個数: 32

約数和(自身を含む): 40218924816

約数和(自身を除く): 19484619926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1553, 3106, 7765, 15530, 20189, 40378, 100945, 102701, 201890, 205402, 513505, 1027010, 1335113, 2670226, 6675565, 13351130, 159494653, 318989306, 797473265, 1594946530, 2073430489, 4146860978, 10367152445, 20734304890]

約数ペア:

[(1, 20734304890), (2, 10367152445), (5, 4146860978), (10, 2073430489), (13, 1594946530), (26, 797473265), (65, 318989306), (130, 159494653), (1553, 13351130), (3106, 6675565), (7765, 2670226), (15530, 1335113), (20189, 1027010), (40378, 513505), (100945, 205402), (102701, 201890)]