20820562920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19278299}}^1$

素因数の和:19278319

約数の個数: 64

約数和(自身を含む): 69401880000

約数和(自身を除く): 48581317080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19278299, 38556598, 57834897, 77113196, 96391495, 115669794, 154226392, 173504691, 192782990, 231339588, 289174485, 347009382, 385565980, 462679176, 520514073, 578348970, 694018764, 771131960, 867523455, 1041028146, 1156697940, 1388037528, 1735046910, 2082056292, 2313395880, 2602570365, 3470093820, 4164112584, 5205140730, 6940187640, 10410281460, 20820562920]

約数ペア:

[(1, 20820562920), (2, 10410281460), (3, 6940187640), (4, 5205140730), (5, 4164112584), (6, 3470093820), (8, 2602570365), (9, 2313395880), (10, 2082056292), (12, 1735046910), (15, 1388037528), (18, 1156697940), (20, 1041028146), (24, 867523455), (27, 771131960), (30, 694018764), (36, 578348970), (40, 520514073), (45, 462679176), (54, 385565980), (60, 347009382), (72, 289174485), (90, 231339588), (108, 192782990), (120, 173504691), (135, 154226392), (180, 115669794), (216, 96391495), (270, 77113196), (360, 57834897), (540, 38556598), (1080, 19278299)]