20539800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11411}}^1$

素因数の和:11433

約数の個数: 72

約数和(自身を含む): 68985540

約数和(自身を除く): 48445740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11411, 22822, 34233, 45644, 57055, 68466, 91288, 102699, 114110, 136932, 171165, 205398, 228220, 273864, 285275, 342330, 410796, 456440, 513495, 570550, 684660, 821592, 855825, 1026990, 1141100, 1369320, 1711650, 2053980, 2282200, 2567475, 3423300, 4107960, 5134950, 6846600, 10269900, 20539800]

約数ペア:

[(1, 20539800), (2, 10269900), (3, 6846600), (4, 5134950), (5, 4107960), (6, 3423300), (8, 2567475), (9, 2282200), (10, 2053980), (12, 1711650), (15, 1369320), (18, 1141100), (20, 1026990), (24, 855825), (25, 821592), (30, 684660), (36, 570550), (40, 513495), (45, 456440), (50, 410796), (60, 342330), (72, 285275), (75, 273864), (90, 228220), (100, 205398), (120, 171165), (150, 136932), (180, 114110), (200, 102699), (225, 91288), (300, 68466), (360, 57055), (450, 45644), (600, 34233), (900, 22822), (1800, 11411)]