19616640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{601}}^1$

素因数の和:640

約数の個数: 128

約数和(自身を含む): 66316320

約数和(自身を除く): 46699680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 601, 640, 680, 816, 960, 1020, 1088, 1202, 1360, 1632, 1803, 1920, 2040, 2176, 2404, 2720, 3005, 3264, 3606, 4080, 4808, 5440, 6010, 6528, 7212, 8160, 9015, 9616, 10217, 10880, 12020, 14424, 16320, 18030, 19232, 20434, 24040, 28848, 30651, 32640, 36060, 38464, 40868, 48080, 51085, 57696, 61302, 72120, 76928, 81736, 96160, 102170, 115392, 122604, 144240, 153255, 163472, 192320, 204340, 230784, 245208, 288480, 306510, 326944, 384640, 408680, 490416, 576960, 613020, 653888, 817360, 980832, 1153920, 1226040, 1307776, 1634720, 1961664, 2452080, 3269440, 3923328, 4904160, 6538880, 9808320, 19616640]

約数ペア:

[(1, 19616640), (2, 9808320), (3, 6538880), (4, 4904160), (5, 3923328), (6, 3269440), (8, 2452080), (10, 1961664), (12, 1634720), (15, 1307776), (16, 1226040), (17, 1153920), (20, 980832), (24, 817360), (30, 653888), (32, 613020), (34, 576960), (40, 490416), (48, 408680), (51, 384640), (60, 326944), (64, 306510), (68, 288480), (80, 245208), (85, 230784), (96, 204340), (102, 192320), (120, 163472), (128, 153255), (136, 144240), (160, 122604), (170, 115392), (192, 102170), (204, 96160), (240, 81736), (255, 76928), (272, 72120), (320, 61302), (340, 57696), (384, 51085), (408, 48080), (480, 40868), (510, 38464), (544, 36060), (601, 32640), (640, 30651), (680, 28848), (816, 24040), (960, 20434), (1020, 19232), (1088, 18030), (1202, 16320), (1360, 14424), (1632, 12020), (1803, 10880), (1920, 10217), (2040, 9616), (2176, 9015), (2404, 8160), (2720, 7212), (3005, 6528), (3264, 6010), (3606, 5440), (4080, 4808)]