12486531440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{27827}}^1$

素因数の和:27990

約数の個数: 80

約数和(自身を含む): 29813806080

約数和(自身を除く): 17327274640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 79, 80, 142, 158, 284, 316, 355, 395, 568, 632, 710, 790, 1136, 1264, 1420, 1580, 2840, 3160, 5609, 5680, 6320, 11218, 22436, 27827, 28045, 44872, 55654, 56090, 89744, 111308, 112180, 139135, 222616, 224360, 278270, 445232, 448720, 556540, 1113080, 1975717, 2198333, 2226160, 3951434, 4396666, 7902868, 8793332, 9878585, 10991665, 15805736, 17586664, 19757170, 21983330, 31611472, 35173328, 39514340, 43966660, 79028680, 87933320, 156081643, 158057360, 175866640, 312163286, 624326572, 780408215, 1248653144, 1560816430, 2497306288, 3121632860, 6243265720, 12486531440]

約数ペア:

[(1, 12486531440), (2, 6243265720), (4, 3121632860), (5, 2497306288), (8, 1560816430), (10, 1248653144), (16, 780408215), (20, 624326572), (40, 312163286), (71, 175866640), (79, 158057360), (80, 156081643), (142, 87933320), (158, 79028680), (284, 43966660), (316, 39514340), (355, 35173328), (395, 31611472), (568, 21983330), (632, 19757170), (710, 17586664), (790, 15805736), (1136, 10991665), (1264, 9878585), (1420, 8793332), (1580, 7902868), (2840, 4396666), (3160, 3951434), (5609, 2226160), (5680, 2198333), (6320, 1975717), (11218, 1113080), (22436, 556540), (27827, 448720), (28045, 445232), (44872, 278270), (55654, 224360), (56090, 222616), (89744, 139135), (111308, 112180)]