20775690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1$

素因数の和:2005

約数の個数: 80

約数和(自身を含む): 60191208

約数和(自身を除く): 39415518

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 1973, 2106, 3510, 3946, 5265, 5919, 9865, 10530, 11838, 17757, 19730, 25649, 29595, 35514, 51298, 53271, 59190, 76947, 88785, 106542, 128245, 153894, 159813, 177570, 230841, 256490, 266355, 319626, 384735, 461682, 532710, 692523, 769470, 799065, 1154205, 1385046, 1598130, 2077569, 2308410, 3462615, 4155138, 6925230, 10387845, 20775690]

約数ペア:

[(1, 20775690), (2, 10387845), (3, 6925230), (5, 4155138), (6, 3462615), (9, 2308410), (10, 2077569), (13, 1598130), (15, 1385046), (18, 1154205), (26, 799065), (27, 769470), (30, 692523), (39, 532710), (45, 461682), (54, 384735), (65, 319626), (78, 266355), (81, 256490), (90, 230841), (117, 177570), (130, 159813), (135, 153894), (162, 128245), (195, 106542), (234, 88785), (270, 76947), (351, 59190), (390, 53271), (405, 51298), (585, 35514), (702, 29595), (810, 25649), (1053, 19730), (1170, 17757), (1755, 11838), (1973, 10530), (2106, 9865), (3510, 5919), (3946, 5265)]