20145490768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{479}}^1\times {\mathrm{839}}^1$

素因数の和:1580

約数の個数: 80

約数和(自身を含む): 42347289600

約数和(自身を除く): 22201798832

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 241, 479, 482, 839, 958, 964, 1678, 1916, 1928, 3133, 3356, 3832, 3856, 6227, 6266, 6712, 7664, 10907, 12454, 12532, 13424, 21814, 24908, 25064, 43628, 49816, 50128, 87256, 99632, 115439, 174512, 202199, 230878, 401881, 404398, 461756, 803762, 808796, 923512, 1500707, 1607524, 1617592, 1847024, 2628587, 3001414, 3215048, 3235184, 5224453, 5257174, 6002828, 6430096, 10448906, 10514348, 12005656, 20897812, 21028696, 24011312, 41795624, 42057392, 83591248, 96853321, 193706642, 387413284, 774826568, 1259093173, 1549653136, 2518186346, 5036372692, 10072745384, 20145490768]

約数ペア:

[(1, 20145490768), (2, 10072745384), (4, 5036372692), (8, 2518186346), (13, 1549653136), (16, 1259093173), (26, 774826568), (52, 387413284), (104, 193706642), (208, 96853321), (241, 83591248), (479, 42057392), (482, 41795624), (839, 24011312), (958, 21028696), (964, 20897812), (1678, 12005656), (1916, 10514348), (1928, 10448906), (3133, 6430096), (3356, 6002828), (3832, 5257174), (3856, 5224453), (6227, 3235184), (6266, 3215048), (6712, 3001414), (7664, 2628587), (10907, 1847024), (12454, 1617592), (12532, 1607524), (13424, 1500707), (21814, 923512), (24908, 808796), (25064, 803762), (43628, 461756), (49816, 404398), (50128, 401881), (87256, 230878), (99632, 202199), (115439, 174512)]