18566915980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{153929}}^1$

素因数の和:154138

約数の個数: 48

約数和(自身を含む): 40290253920

約数和(自身を除く): 21723337940

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 163, 185, 326, 370, 652, 740, 815, 1630, 3260, 6031, 12062, 24124, 30155, 60310, 120620, 153929, 307858, 615716, 769645, 1539290, 3078580, 5695373, 11390746, 22781492, 25090427, 28476865, 50180854, 56953730, 100361708, 113907460, 125452135, 250904270, 501808540, 928345799, 1856691598, 3713383196, 4641728995, 9283457990, 18566915980]

約数ペア:

[(1, 18566915980), (2, 9283457990), (4, 4641728995), (5, 3713383196), (10, 1856691598), (20, 928345799), (37, 501808540), (74, 250904270), (148, 125452135), (163, 113907460), (185, 100361708), (326, 56953730), (370, 50180854), (652, 28476865), (740, 25090427), (815, 22781492), (1630, 11390746), (3260, 5695373), (6031, 3078580), (12062, 1539290), (24124, 769645), (30155, 615716), (60310, 307858), (120620, 153929)]