19003888760

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{87511}}^1$

素因数の和:87672

約数の個数: 64

約数和(自身を含む): 43948526400

約数和(自身を除く): 24944637640

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, 87511, 108580, 175022, 217160, 350044, 437555, 700088, 875110, 1750220, 3500440, 5338171, 7788479, 10676342, 15576958, 21352684, 26690855, 31153916, 38942395, 42705368, 53381710, 62307832, 77884790, 106763420, 155769580, 213526840, 311539160, 475097219, 950194438, 1900388876, 2375486095, 3800777752, 4750972190, 9501944380, 19003888760]

約数ペア:

[(1, 19003888760), (2, 9501944380), (4, 4750972190), (5, 3800777752), (8, 2375486095), (10, 1900388876), (20, 950194438), (40, 475097219), (61, 311539160), (89, 213526840), (122, 155769580), (178, 106763420), (244, 77884790), (305, 62307832), (356, 53381710), (445, 42705368), (488, 38942395), (610, 31153916), (712, 26690855), (890, 21352684), (1220, 15576958), (1780, 10676342), (2440, 7788479), (3560, 5338171), (5429, 3500440), (10858, 1750220), (21716, 875110), (27145, 700088), (43432, 437555), (54290, 350044), (87511, 217160), (108580, 175022)]