8203520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 23178960

約数和(自身を除く): 14975440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 29, 32, 34, 40, 52, 58, 64, 65, 68, 80, 85, 104, 116, 128, 130, 136, 145, 160, 170, 208, 221, 232, 256, 260, 272, 290, 320, 340, 377, 416, 442, 464, 493, 520, 544, 580, 640, 680, 754, 832, 884, 928, 986, 1040, 1088, 1105, 1160, 1280, 1360, 1508, 1664, 1768, 1856, 1885, 1972, 2080, 2176, 2210, 2320, 2465, 2720, 3016, 3328, 3536, 3712, 3770, 3944, 4160, 4352, 4420, 4640, 4930, 5440, 6032, 6409, 7072, 7424, 7540, 7888, 8320, 8840, 9280, 9860, 10880, 12064, 12818, 14144, 15080, 15776, 16640, 17680, 18560, 19720, 21760, 24128, 25636, 28288, 30160, 31552, 32045, 35360, 37120, 39440, 48256, 51272, 56576, 60320, 63104, 64090, 70720, 78880, 96512, 102544, 120640, 126208, 128180, 141440, 157760, 205088, 241280, 256360, 282880, 315520, 410176, 482560, 512720, 631040, 820352, 1025440, 1640704, 2050880, 4101760, 8203520]

約数ペア:

[(1, 8203520), (2, 4101760), (4, 2050880), (5, 1640704), (8, 1025440), (10, 820352), (13, 631040), (16, 512720), (17, 482560), (20, 410176), (26, 315520), (29, 282880), (32, 256360), (34, 241280), (40, 205088), (52, 157760), (58, 141440), (64, 128180), (65, 126208), (68, 120640), (80, 102544), (85, 96512), (104, 78880), (116, 70720), (128, 64090), (130, 63104), (136, 60320), (145, 56576), (160, 51272), (170, 48256), (208, 39440), (221, 37120), (232, 35360), (256, 32045), (260, 31552), (272, 30160), (290, 28288), (320, 25636), (340, 24128), (377, 21760), (416, 19720), (442, 18560), (464, 17680), (493, 16640), (520, 15776), (544, 15080), (580, 14144), (640, 12818), (680, 12064), (754, 10880), (832, 9860), (884, 9280), (928, 8840), (986, 8320), (1040, 7888), (1088, 7540), (1105, 7424), (1160, 7072), (1280, 6409), (1360, 6032), (1508, 5440), (1664, 4930), (1768, 4640), (1856, 4420), (1885, 4352), (1972, 4160), (2080, 3944), (2176, 3770), (2210, 3712), (2320, 3536), (2465, 3328), (2720, 3016)]