20264760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{311}}^1$

素因数の和:509

約数の個数: 96

約数和(自身を含む): 66437280

約数和(自身を除く): 46172520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 181, 311, 360, 362, 543, 622, 724, 905, 933, 1086, 1244, 1448, 1555, 1629, 1810, 1866, 2172, 2488, 2715, 2799, 3110, 3258, 3620, 3732, 4344, 4665, 5430, 5598, 6220, 6516, 7240, 7464, 8145, 9330, 10860, 11196, 12440, 13032, 13995, 16290, 18660, 21720, 22392, 27990, 32580, 37320, 55980, 56291, 65160, 111960, 112582, 168873, 225164, 281455, 337746, 450328, 506619, 562910, 675492, 844365, 1013238, 1125820, 1350984, 1688730, 2026476, 2251640, 2533095, 3377460, 4052952, 5066190, 6754920, 10132380, 20264760]

約数ペア:

[(1, 20264760), (2, 10132380), (3, 6754920), (4, 5066190), (5, 4052952), (6, 3377460), (8, 2533095), (9, 2251640), (10, 2026476), (12, 1688730), (15, 1350984), (18, 1125820), (20, 1013238), (24, 844365), (30, 675492), (36, 562910), (40, 506619), (45, 450328), (60, 337746), (72, 281455), (90, 225164), (120, 168873), (180, 112582), (181, 111960), (311, 65160), (360, 56291), (362, 55980), (543, 37320), (622, 32580), (724, 27990), (905, 22392), (933, 21720), (1086, 18660), (1244, 16290), (1448, 13995), (1555, 13032), (1629, 12440), (1810, 11196), (1866, 10860), (2172, 9330), (2488, 8145), (2715, 7464), (2799, 7240), (3110, 6516), (3258, 6220), (3620, 5598), (3732, 5430), (4344, 4665)]