20271840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 64501920

約数和(自身を除く): 44230080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 157, 160, 240, 269, 314, 471, 480, 538, 628, 785, 807, 942, 1076, 1256, 1345, 1570, 1614, 1884, 2152, 2355, 2512, 2690, 3140, 3228, 3768, 4035, 4304, 4710, 5024, 5380, 6280, 6456, 7536, 8070, 8608, 9420, 10760, 12560, 12912, 15072, 16140, 18840, 21520, 25120, 25824, 32280, 37680, 42233, 43040, 64560, 75360, 84466, 126699, 129120, 168932, 211165, 253398, 337864, 422330, 506796, 633495, 675728, 844660, 1013592, 1266990, 1351456, 1689320, 2027184, 2533980, 3378640, 4054368, 5067960, 6757280, 10135920, 20271840]

約数ペア:

[(1, 20271840), (2, 10135920), (3, 6757280), (4, 5067960), (5, 4054368), (6, 3378640), (8, 2533980), (10, 2027184), (12, 1689320), (15, 1351456), (16, 1266990), (20, 1013592), (24, 844660), (30, 675728), (32, 633495), (40, 506796), (48, 422330), (60, 337864), (80, 253398), (96, 211165), (120, 168932), (157, 129120), (160, 126699), (240, 84466), (269, 75360), (314, 64560), (471, 43040), (480, 42233), (538, 37680), (628, 32280), (785, 25824), (807, 25120), (942, 21520), (1076, 18840), (1256, 16140), (1345, 15072), (1570, 12912), (1614, 12560), (1884, 10760), (2152, 9420), (2355, 8608), (2512, 8070), (2690, 7536), (3140, 6456), (3228, 6280), (3768, 5380), (4035, 5024), (4304, 4710)]