19865520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{541}}^1$

素因数の和:580

約数の個数: 160

約数和(自身を含む): 72584640

約数和(自身を除く): 52719120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 102, 108, 120, 135, 136, 144, 153, 170, 180, 204, 216, 240, 255, 270, 272, 306, 340, 360, 408, 432, 459, 510, 540, 541, 612, 680, 720, 765, 816, 918, 1020, 1080, 1082, 1224, 1360, 1530, 1623, 1836, 2040, 2160, 2164, 2295, 2448, 2705, 3060, 3246, 3672, 4080, 4328, 4590, 4869, 5410, 6120, 6492, 7344, 8115, 8656, 9180, 9197, 9738, 10820, 12240, 12984, 14607, 16230, 18360, 18394, 19476, 21640, 24345, 25968, 27591, 29214, 32460, 36720, 36788, 38952, 43280, 45985, 48690, 55182, 58428, 64920, 73035, 73576, 77904, 82773, 91970, 97380, 110364, 116856, 129840, 137955, 146070, 147152, 165546, 183940, 194760, 220728, 233712, 248319, 275910, 292140, 331092, 367880, 389520, 413865, 441456, 496638, 551820, 584280, 662184, 735760, 827730, 993276, 1103640, 1168560, 1241595, 1324368, 1655460, 1986552, 2207280, 2483190, 3310920, 3973104, 4966380, 6621840, 9932760, 19865520]

約数ペア:

[(1, 19865520), (2, 9932760), (3, 6621840), (4, 4966380), (5, 3973104), (6, 3310920), (8, 2483190), (9, 2207280), (10, 1986552), (12, 1655460), (15, 1324368), (16, 1241595), (17, 1168560), (18, 1103640), (20, 993276), (24, 827730), (27, 735760), (30, 662184), (34, 584280), (36, 551820), (40, 496638), (45, 441456), (48, 413865), (51, 389520), (54, 367880), (60, 331092), (68, 292140), (72, 275910), (80, 248319), (85, 233712), (90, 220728), (102, 194760), (108, 183940), (120, 165546), (135, 147152), (136, 146070), (144, 137955), (153, 129840), (170, 116856), (180, 110364), (204, 97380), (216, 91970), (240, 82773), (255, 77904), (270, 73576), (272, 73035), (306, 64920), (340, 58428), (360, 55182), (408, 48690), (432, 45985), (459, 43280), (510, 38952), (540, 36788), (541, 36720), (612, 32460), (680, 29214), (720, 27591), (765, 25968), (816, 24345), (918, 21640), (1020, 19476), (1080, 18394), (1082, 18360), (1224, 16230), (1360, 14607), (1530, 12984), (1623, 12240), (1836, 10820), (2040, 9738), (2160, 9197), (2164, 9180), (2295, 8656), (2448, 8115), (2705, 7344), (3060, 6492), (3246, 6120), (3672, 5410), (4080, 4869), (4328, 4590)]