217160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 32

約数和(自身を含む): 502200

約数和(自身を除く): 285040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 89, 122, 178, 244, 305, 356, 445, 488, 610, 712, 890, 1220, 1780, 2440, 3560, 5429, 10858, 21716, 27145, 43432, 54290, 108580, 217160]

約数ペア:

[(1, 217160), (2, 108580), (4, 54290), (5, 43432), (8, 27145), (10, 21716), (20, 10858), (40, 5429), (61, 3560), (89, 2440), (122, 1780), (178, 1220), (244, 890), (305, 712), (356, 610), (445, 488)]