655020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{1213}}^1$

素因数の和:1231

約数の個数: 48

約数和(自身を含む): 2039520

約数和(自身を除く): 1384500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 1213, 2426, 3639, 4852, 6065, 7278, 10917, 12130, 14556, 18195, 21834, 24260, 32751, 36390, 43668, 54585, 65502, 72780, 109170, 131004, 163755, 218340, 327510, 655020]

約数ペア:

[(1, 655020), (2, 327510), (3, 218340), (4, 163755), (5, 131004), (6, 109170), (9, 72780), (10, 65502), (12, 54585), (15, 43668), (18, 36390), (20, 32751), (27, 24260), (30, 21834), (36, 18195), (45, 14556), (54, 12130), (60, 10917), (90, 7278), (108, 6065), (135, 4852), (180, 3639), (270, 2426), (540, 1213)]