521756820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{761}}^1$

素因数の和:1082

約数の個数: 144

約数和(自身を含む): 1712470032

約数和(自身を除く): 1190713212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 293, 390, 468, 585, 586, 761, 780, 879, 1170, 1172, 1465, 1522, 1758, 2283, 2340, 2637, 2930, 3044, 3516, 3805, 3809, 4395, 4566, 5274, 5860, 6849, 7610, 7618, 8790, 9132, 9893, 10548, 11415, 11427, 13185, 13698, 15220, 15236, 17580, 19045, 19786, 22830, 22854, 26370, 27396, 29679, 34245, 34281, 38090, 39572, 45660, 45708, 49465, 52740, 57135, 59358, 68490, 68562, 76180, 89037, 98930, 114270, 118716, 136980, 137124, 148395, 171405, 178074, 197860, 222973, 228540, 296790, 342810, 356148, 445185, 445946, 593580, 668919, 685620, 890370, 891892, 1114865, 1337838, 1780740, 2006757, 2229730, 2675676, 2898649, 3344595, 4013514, 4459460, 5797298, 6689190, 8027028, 8695947, 10033785, 11594596, 13378380, 14493245, 17391894, 20067570, 26087841, 28986490, 34783788, 40135140, 43479735, 52175682, 57972980, 86959470, 104351364, 130439205, 173918940, 260878410, 521756820]

約数ペア:

[(1, 521756820), (2, 260878410), (3, 173918940), (4, 130439205), (5, 104351364), (6, 86959470), (9, 57972980), (10, 52175682), (12, 43479735), (13, 40135140), (15, 34783788), (18, 28986490), (20, 26087841), (26, 20067570), (30, 17391894), (36, 14493245), (39, 13378380), (45, 11594596), (52, 10033785), (60, 8695947), (65, 8027028), (78, 6689190), (90, 5797298), (117, 4459460), (130, 4013514), (156, 3344595), (180, 2898649), (195, 2675676), (234, 2229730), (260, 2006757), (293, 1780740), (390, 1337838), (468, 1114865), (585, 891892), (586, 890370), (761, 685620), (780, 668919), (879, 593580), (1170, 445946), (1172, 445185), (1465, 356148), (1522, 342810), (1758, 296790), (2283, 228540), (2340, 222973), (2637, 197860), (2930, 178074), (3044, 171405), (3516, 148395), (3805, 137124), (3809, 136980), (4395, 118716), (4566, 114270), (5274, 98930), (5860, 89037), (6849, 76180), (7610, 68562), (7618, 68490), (8790, 59358), (9132, 57135), (9893, 52740), (10548, 49465), (11415, 45708), (11427, 45660), (13185, 39572), (13698, 38090), (15220, 34281), (15236, 34245), (17580, 29679), (19045, 27396), (19786, 26370), (22830, 22854)]