20213090890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{825361}}^1$

素因数の和:825478

約数の個数: 32

約数和(自身を含む): 38032680960

約数和(自身を除く): 17819590070

約数列:

[1, 2, 5, 10, 31, 62, 79, 155, 158, 310, 395, 790, 2449, 4898, 12245, 24490, 825361, 1650722, 4126805, 8253610, 25586191, 51172382, 65203519, 127930955, 130407038, 255861910, 326017595, 652035190, 2021309089, 4042618178, 10106545445, 20213090890]

約数ペア:

[(1, 20213090890), (2, 10106545445), (5, 4042618178), (10, 2021309089), (31, 652035190), (62, 326017595), (79, 255861910), (155, 130407038), (158, 127930955), (310, 65203519), (395, 51172382), (790, 25586191), (2449, 8253610), (4898, 4126805), (12245, 1650722), (24490, 825361)]