8078720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1$

素因数の和:1003

約数の個数: 64

約数和(自身を含む): 20820240

約数和(自身を除く): 12741520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 971, 1040, 1664, 1942, 2080, 3884, 4160, 4855, 7768, 8320, 9710, 12623, 15536, 19420, 25246, 31072, 38840, 50492, 62144, 63115, 77680, 100984, 124288, 126230, 155360, 201968, 252460, 310720, 403936, 504920, 621440, 807872, 1009840, 1615744, 2019680, 4039360, 8078720]

約数ペア:

[(1, 8078720), (2, 4039360), (4, 2019680), (5, 1615744), (8, 1009840), (10, 807872), (13, 621440), (16, 504920), (20, 403936), (26, 310720), (32, 252460), (40, 201968), (52, 155360), (64, 126230), (65, 124288), (80, 100984), (104, 77680), (128, 63115), (130, 62144), (160, 50492), (208, 38840), (260, 31072), (320, 25246), (416, 19420), (520, 15536), (640, 12623), (832, 9710), (971, 8320), (1040, 7768), (1664, 4855), (1942, 4160), (2080, 3884)]