17155640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 40176000

約数和(自身を除く): 23020360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 79, 89, 122, 158, 178, 244, 305, 316, 356, 395, 445, 488, 610, 632, 712, 790, 890, 1220, 1580, 1780, 2440, 3160, 3560, 4819, 5429, 7031, 9638, 10858, 14062, 19276, 21716, 24095, 27145, 28124, 35155, 38552, 43432, 48190, 54290, 56248, 70310, 96380, 108580, 140620, 192760, 217160, 281240, 428891, 857782, 1715564, 2144455, 3431128, 4288910, 8577820, 17155640]

約数ペア:

[(1, 17155640), (2, 8577820), (4, 4288910), (5, 3431128), (8, 2144455), (10, 1715564), (20, 857782), (40, 428891), (61, 281240), (79, 217160), (89, 192760), (122, 140620), (158, 108580), (178, 96380), (244, 70310), (305, 56248), (316, 54290), (356, 48190), (395, 43432), (445, 38552), (488, 35155), (610, 28124), (632, 27145), (712, 24095), (790, 21716), (890, 19276), (1220, 14062), (1580, 10858), (1780, 9638), (2440, 7031), (3160, 5429), (3560, 4819)]