20300400

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5639}}^1$

素因数の和:5663

約数の個数: 90

約数和(自身を含む): 70460520

約数和(自身を除く): 50160120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600, 5639, 11278, 16917, 22556, 28195, 33834, 45112, 50751, 56390, 67668, 84585, 90224, 101502, 112780, 135336, 140975, 169170, 203004, 225560, 253755, 270672, 281950, 338340, 406008, 422925, 451120, 507510, 563900, 676680, 812016, 845850, 1015020, 1127800, 1268775, 1353360, 1691700, 2030040, 2255600, 2537550, 3383400, 4060080, 5075100, 6766800, 10150200, 20300400]

約数ペア:

[(1, 20300400), (2, 10150200), (3, 6766800), (4, 5075100), (5, 4060080), (6, 3383400), (8, 2537550), (9, 2255600), (10, 2030040), (12, 1691700), (15, 1353360), (16, 1268775), (18, 1127800), (20, 1015020), (24, 845850), (25, 812016), (30, 676680), (36, 563900), (40, 507510), (45, 451120), (48, 422925), (50, 406008), (60, 338340), (72, 281950), (75, 270672), (80, 253755), (90, 225560), (100, 203004), (120, 169170), (144, 140975), (150, 135336), (180, 112780), (200, 101502), (225, 90224), (240, 84585), (300, 67668), (360, 56390), (400, 50751), (450, 45112), (600, 33834), (720, 28195), (900, 22556), (1200, 16917), (1800, 11278), (3600, 5639)]