20207280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:598

約数の個数: 80

約数和(自身を含む): 63076320

約数和(自身を除く): 42869040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 269, 313, 538, 626, 807, 939, 1076, 1252, 1345, 1565, 1614, 1878, 2152, 2504, 2690, 3130, 3228, 3756, 4035, 4304, 4695, 5008, 5380, 6260, 6456, 7512, 8070, 9390, 10760, 12520, 12912, 15024, 16140, 18780, 21520, 25040, 32280, 37560, 64560, 75120, 84197, 168394, 252591, 336788, 420985, 505182, 673576, 841970, 1010364, 1262955, 1347152, 1683940, 2020728, 2525910, 3367880, 4041456, 5051820, 6735760, 10103640, 20207280]

約数ペア:

[(1, 20207280), (2, 10103640), (3, 6735760), (4, 5051820), (5, 4041456), (6, 3367880), (8, 2525910), (10, 2020728), (12, 1683940), (15, 1347152), (16, 1262955), (20, 1010364), (24, 841970), (30, 673576), (40, 505182), (48, 420985), (60, 336788), (80, 252591), (120, 168394), (240, 84197), (269, 75120), (313, 64560), (538, 37560), (626, 32280), (807, 25040), (939, 21520), (1076, 18780), (1252, 16140), (1345, 15024), (1565, 12912), (1614, 12520), (1878, 10760), (2152, 9390), (2504, 8070), (2690, 7512), (3130, 6456), (3228, 6260), (3756, 5380), (4035, 5008), (4304, 4695)]