19609380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 69189120

約数和(自身を除く): 49579740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 79, 84, 90, 105, 126, 140, 158, 180, 197, 210, 237, 252, 315, 316, 394, 395, 420, 474, 553, 591, 630, 711, 788, 790, 948, 985, 1106, 1182, 1185, 1260, 1379, 1422, 1580, 1659, 1773, 1970, 2212, 2364, 2370, 2758, 2765, 2844, 2955, 3318, 3546, 3555, 3940, 4137, 4740, 4977, 5516, 5530, 5910, 6636, 6895, 7092, 7110, 8274, 8295, 8865, 9954, 11060, 11820, 12411, 13790, 14220, 15563, 16548, 16590, 17730, 19908, 20685, 24822, 24885, 27580, 31126, 33180, 35460, 41370, 46689, 49644, 49770, 62055, 62252, 77815, 82740, 93378, 99540, 108941, 124110, 140067, 155630, 186756, 217882, 233445, 248220, 280134, 311260, 326823, 435764, 466890, 544705, 560268, 653646, 700335, 933780, 980469, 1089410, 1307292, 1400670, 1634115, 1960938, 2178820, 2801340, 3268230, 3921876, 4902345, 6536460, 9804690, 19609380]

約数ペア:

[(1, 19609380), (2, 9804690), (3, 6536460), (4, 4902345), (5, 3921876), (6, 3268230), (7, 2801340), (9, 2178820), (10, 1960938), (12, 1634115), (14, 1400670), (15, 1307292), (18, 1089410), (20, 980469), (21, 933780), (28, 700335), (30, 653646), (35, 560268), (36, 544705), (42, 466890), (45, 435764), (60, 326823), (63, 311260), (70, 280134), (79, 248220), (84, 233445), (90, 217882), (105, 186756), (126, 155630), (140, 140067), (158, 124110), (180, 108941), (197, 99540), (210, 93378), (237, 82740), (252, 77815), (315, 62252), (316, 62055), (394, 49770), (395, 49644), (420, 46689), (474, 41370), (553, 35460), (591, 33180), (630, 31126), (711, 27580), (788, 24885), (790, 24822), (948, 20685), (985, 19908), (1106, 17730), (1182, 16590), (1185, 16548), (1260, 15563), (1379, 14220), (1422, 13790), (1580, 12411), (1659, 11820), (1773, 11060), (1970, 9954), (2212, 8865), (2364, 8295), (2370, 8274), (2758, 7110), (2765, 7092), (2844, 6895), (2955, 6636), (3318, 5910), (3546, 5530), (3555, 5516), (3940, 4977), (4137, 4740)]