20523240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:664

約数の個数: 128

約数和(自身を含む): 70732800

約数和(自身を除く): 50209560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 613, 620, 744, 837, 930, 1080, 1116, 1226, 1240, 1395, 1674, 1839, 1860, 2232, 2452, 2790, 3065, 3348, 3678, 3720, 4185, 4904, 5517, 5580, 6130, 6696, 7356, 8370, 9195, 11034, 11160, 12260, 14712, 16551, 16740, 18390, 19003, 22068, 24520, 27585, 33102, 33480, 36780, 38006, 44136, 55170, 57009, 66204, 73560, 76012, 82755, 95015, 110340, 114018, 132408, 152024, 165510, 171027, 190030, 220680, 228036, 285045, 331020, 342054, 380060, 456072, 513081, 570090, 662040, 684108, 760120, 855135, 1026162, 1140180, 1368216, 1710270, 2052324, 2280360, 2565405, 3420540, 4104648, 5130810, 6841080, 10261620, 20523240]

約数ペア:

[(1, 20523240), (2, 10261620), (3, 6841080), (4, 5130810), (5, 4104648), (6, 3420540), (8, 2565405), (9, 2280360), (10, 2052324), (12, 1710270), (15, 1368216), (18, 1140180), (20, 1026162), (24, 855135), (27, 760120), (30, 684108), (31, 662040), (36, 570090), (40, 513081), (45, 456072), (54, 380060), (60, 342054), (62, 331020), (72, 285045), (90, 228036), (93, 220680), (108, 190030), (120, 171027), (124, 165510), (135, 152024), (155, 132408), (180, 114018), (186, 110340), (216, 95015), (248, 82755), (270, 76012), (279, 73560), (310, 66204), (360, 57009), (372, 55170), (465, 44136), (540, 38006), (558, 36780), (613, 33480), (620, 33102), (744, 27585), (837, 24520), (930, 22068), (1080, 19003), (1116, 18390), (1226, 16740), (1240, 16551), (1395, 14712), (1674, 12260), (1839, 11160), (1860, 11034), (2232, 9195), (2452, 8370), (2790, 7356), (3065, 6696), (3348, 6130), (3678, 5580), (3720, 5517), (4185, 4904)]