64525760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15511}}^1$

素因数の和:15541

約数の個数: 56

約数和(自身を含む): 165482016

約数和(自身を除く): 100956256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 15511, 31022, 62044, 77555, 124088, 155110, 201643, 248176, 310220, 403286, 496352, 620440, 806572, 992704, 1008215, 1240880, 1613144, 2016430, 2481760, 3226288, 4032860, 4963520, 6452576, 8065720, 12905152, 16131440, 32262880, 64525760]

約数ペア:

[(1, 64525760), (2, 32262880), (4, 16131440), (5, 12905152), (8, 8065720), (10, 6452576), (13, 4963520), (16, 4032860), (20, 3226288), (26, 2481760), (32, 2016430), (40, 1613144), (52, 1240880), (64, 1008215), (65, 992704), (80, 806572), (104, 620440), (130, 496352), (160, 403286), (208, 310220), (260, 248176), (320, 201643), (416, 155110), (520, 124088), (832, 77555), (1040, 62044), (2080, 31022), (4160, 15511)]