19608120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 55870920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 251, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 502, 504, 558, 620, 630, 651, 744, 753, 840, 868, 930, 1004, 1085, 1116, 1240, 1255, 1260, 1302, 1395, 1506, 1736, 1757, 1860, 1953, 2008, 2170, 2232, 2259, 2510, 2520, 2604, 2790, 3012, 3255, 3514, 3720, 3765, 3906, 4340, 4518, 5020, 5208, 5271, 5580, 6024, 6510, 7028, 7530, 7781, 7812, 8680, 8785, 9036, 9765, 10040, 10542, 11160, 11295, 13020, 14056, 15060, 15562, 15624, 15813, 17570, 18072, 19530, 21084, 22590, 23343, 26040, 26355, 30120, 31124, 31626, 35140, 38905, 39060, 42168, 45180, 46686, 52710, 54467, 62248, 63252, 70029, 70280, 77810, 78120, 79065, 90360, 93372, 105420, 108934, 116715, 126504, 140058, 155620, 158130, 163401, 186744, 210840, 217868, 233430, 272335, 280116, 311240, 316260, 326802, 350145, 435736, 466860, 490203, 544670, 560232, 632520, 653604, 700290, 817005, 933720, 980406, 1089340, 1307208, 1400580, 1634010, 1960812, 2178680, 2451015, 2801160, 3268020, 3921624, 4902030, 6536040, 9804060, 19608120]

約数ペア:

[(1, 19608120), (2, 9804060), (3, 6536040), (4, 4902030), (5, 3921624), (6, 3268020), (7, 2801160), (8, 2451015), (9, 2178680), (10, 1960812), (12, 1634010), (14, 1400580), (15, 1307208), (18, 1089340), (20, 980406), (21, 933720), (24, 817005), (28, 700290), (30, 653604), (31, 632520), (35, 560232), (36, 544670), (40, 490203), (42, 466860), (45, 435736), (56, 350145), (60, 326802), (62, 316260), (63, 311240), (70, 280116), (72, 272335), (84, 233430), (90, 217868), (93, 210840), (105, 186744), (120, 163401), (124, 158130), (126, 155620), (140, 140058), (155, 126504), (168, 116715), (180, 108934), (186, 105420), (210, 93372), (217, 90360), (248, 79065), (251, 78120), (252, 77810), (279, 70280), (280, 70029), (310, 63252), (315, 62248), (360, 54467), (372, 52710), (420, 46686), (434, 45180), (465, 42168), (502, 39060), (504, 38905), (558, 35140), (620, 31626), (630, 31124), (651, 30120), (744, 26355), (753, 26040), (840, 23343), (868, 22590), (930, 21084), (1004, 19530), (1085, 18072), (1116, 17570), (1240, 15813), (1255, 15624), (1260, 15562), (1302, 15060), (1395, 14056), (1506, 13020), (1736, 11295), (1757, 11160), (1860, 10542), (1953, 10040), (2008, 9765), (2170, 9036), (2232, 8785), (2259, 8680), (2510, 7812), (2520, 7781), (2604, 7530), (2790, 7028), (3012, 6510), (3255, 6024), (3514, 5580), (3720, 5271), (3765, 5208), (3906, 5020), (4340, 4518)]