2161209420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{69403}}^1$

素因数の和:69591

約数の個数: 72

約数和(自身を含む): 6593657616

約数和(自身を除く): 4432448196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 692, 865, 1038, 1557, 1730, 2076, 2595, 3114, 3460, 5190, 6228, 7785, 10380, 15570, 31140, 69403, 138806, 208209, 277612, 347015, 416418, 624627, 694030, 832836, 1041045, 1249254, 1388060, 2082090, 2498508, 3123135, 4164180, 6246270, 12006719, 12492540, 24013438, 36020157, 48026876, 60033595, 72040314, 108060471, 120067190, 144080628, 180100785, 216120942, 240134380, 360201570, 432241884, 540302355, 720403140, 1080604710, 2161209420]

約数ペア:

[(1, 2161209420), (2, 1080604710), (3, 720403140), (4, 540302355), (5, 432241884), (6, 360201570), (9, 240134380), (10, 216120942), (12, 180100785), (15, 144080628), (18, 120067190), (20, 108060471), (30, 72040314), (36, 60033595), (45, 48026876), (60, 36020157), (90, 24013438), (173, 12492540), (180, 12006719), (346, 6246270), (519, 4164180), (692, 3123135), (865, 2498508), (1038, 2082090), (1557, 1388060), (1730, 1249254), (2076, 1041045), (2595, 832836), (3114, 694030), (3460, 624627), (5190, 416418), (6228, 347015), (7785, 277612), (10380, 208209), (15570, 138806), (31140, 69403)]