19990686580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{7537}}^1$

素因数の和:7861

約数の個数: 96

約数和(自身を含む): 46159696800

約数和(自身を除く): 26169010220

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 269, 290, 340, 493, 538, 580, 986, 1076, 1345, 1972, 2465, 2690, 4573, 4930, 5380, 7537, 7801, 9146, 9860, 15074, 15602, 18292, 22865, 30148, 31204, 37685, 39005, 45730, 75370, 78010, 91460, 128129, 132617, 150740, 156020, 218573, 256258, 265234, 437146, 512516, 530468, 640645, 663085, 874292, 1092865, 1281290, 1326170, 2027453, 2185730, 2562580, 2652340, 3715741, 4054906, 4371460, 7431482, 8109812, 10137265, 14862964, 18578705, 20274530, 34466701, 37157410, 40549060, 58796137, 68933402, 74314820, 117592274, 137866804, 172333505, 235184548, 293980685, 344667010, 587961370, 689334020, 999534329, 1175922740, 1999068658, 3998137316, 4997671645, 9995343290, 19990686580]

約数ペア:

[(1, 19990686580), (2, 9995343290), (4, 4997671645), (5, 3998137316), (10, 1999068658), (17, 1175922740), (20, 999534329), (29, 689334020), (34, 587961370), (58, 344667010), (68, 293980685), (85, 235184548), (116, 172333505), (145, 137866804), (170, 117592274), (269, 74314820), (290, 68933402), (340, 58796137), (493, 40549060), (538, 37157410), (580, 34466701), (986, 20274530), (1076, 18578705), (1345, 14862964), (1972, 10137265), (2465, 8109812), (2690, 7431482), (4573, 4371460), (4930, 4054906), (5380, 3715741), (7537, 2652340), (7801, 2562580), (9146, 2185730), (9860, 2027453), (15074, 1326170), (15602, 1281290), (18292, 1092865), (22865, 874292), (30148, 663085), (31204, 640645), (37685, 530468), (39005, 512516), (45730, 437146), (75370, 265234), (78010, 256258), (91460, 218573), (128129, 156020), (132617, 150740)]