81669810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{641}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 204125184

約数和(自身を除く): 122455374

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 137, 155, 186, 274, 310, 411, 465, 641, 685, 822, 930, 1282, 1370, 1923, 2055, 3205, 3846, 4110, 4247, 6410, 8494, 9615, 12741, 19230, 19871, 21235, 25482, 39742, 42470, 59613, 63705, 87817, 99355, 119226, 127410, 175634, 198710, 263451, 298065, 439085, 526902, 596130, 878170, 1317255, 2634510, 2722327, 5444654, 8166981, 13611635, 16333962, 27223270, 40834905, 81669810]

約数ペア:

[(1, 81669810), (2, 40834905), (3, 27223270), (5, 16333962), (6, 13611635), (10, 8166981), (15, 5444654), (30, 2722327), (31, 2634510), (62, 1317255), (93, 878170), (137, 596130), (155, 526902), (186, 439085), (274, 298065), (310, 263451), (411, 198710), (465, 175634), (641, 127410), (685, 119226), (822, 99355), (930, 87817), (1282, 63705), (1370, 59613), (1923, 42470), (2055, 39742), (3205, 25482), (3846, 21235), (4110, 19871), (4247, 19230), (6410, 12741), (8494, 9615)]