809974360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19717}}^1$

素因数の和:19820

約数の個数: 64

約数和(自身を含む): 1987574400

約数和(自身を除く): 1177600040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 520, 632, 790, 1027, 1580, 2054, 3160, 4108, 5135, 8216, 10270, 19717, 20540, 39434, 41080, 78868, 98585, 157736, 197170, 256321, 394340, 512642, 788680, 1025284, 1281605, 1557643, 2050568, 2563210, 3115286, 5126420, 6230572, 7788215, 10252840, 12461144, 15576430, 20249359, 31152860, 40498718, 62305720, 80997436, 101246795, 161994872, 202493590, 404987180, 809974360]

約数ペア:

[(1, 809974360), (2, 404987180), (4, 202493590), (5, 161994872), (8, 101246795), (10, 80997436), (13, 62305720), (20, 40498718), (26, 31152860), (40, 20249359), (52, 15576430), (65, 12461144), (79, 10252840), (104, 7788215), (130, 6230572), (158, 5126420), (260, 3115286), (316, 2563210), (395, 2050568), (520, 1557643), (632, 1281605), (790, 1025284), (1027, 788680), (1580, 512642), (2054, 394340), (3160, 256321), (4108, 197170), (5135, 157736), (8216, 98585), (10270, 78868), (19717, 41080), (20540, 39434)]