19680840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18223}}^1$

素因数の和:18243

約数の個数: 64

約数和(自身を含む): 65606400

約数和(自身を除く): 45925560

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, 18223, 36446, 54669, 72892, 91115, 109338, 145784, 164007, 182230, 218676, 273345, 328014, 364460, 437352, 492021, 546690, 656028, 728920, 820035, 984042, 1093380, 1312056, 1640070, 1968084, 2186760, 2460105, 3280140, 3936168, 4920210, 6560280, 9840420, 19680840]

約数ペア:

[(1, 19680840), (2, 9840420), (3, 6560280), (4, 4920210), (5, 3936168), (6, 3280140), (8, 2460105), (9, 2186760), (10, 1968084), (12, 1640070), (15, 1312056), (18, 1093380), (20, 984042), (24, 820035), (27, 728920), (30, 656028), (36, 546690), (40, 492021), (45, 437352), (54, 364460), (60, 328014), (72, 273345), (90, 218676), (108, 182230), (120, 164007), (135, 145784), (180, 109338), (216, 91115), (270, 72892), (360, 54669), (540, 36446), (1080, 18223)]