8491490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 18662400

約数和(自身を除く): 10170910

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 47, 58, 70, 89, 94, 145, 178, 203, 235, 290, 329, 406, 445, 470, 623, 658, 890, 1015, 1246, 1363, 1645, 2030, 2581, 2726, 3115, 3290, 4183, 5162, 6230, 6815, 8366, 9541, 12905, 13630, 18067, 19082, 20915, 25810, 29281, 36134, 41830, 47705, 58562, 90335, 95410, 121307, 146405, 180670, 242614, 292810, 606535, 849149, 1213070, 1698298, 4245745, 8491490]

約数ペア:

[(1, 8491490), (2, 4245745), (5, 1698298), (7, 1213070), (10, 849149), (14, 606535), (29, 292810), (35, 242614), (47, 180670), (58, 146405), (70, 121307), (89, 95410), (94, 90335), (145, 58562), (178, 47705), (203, 41830), (235, 36134), (290, 29281), (329, 25810), (406, 20915), (445, 19082), (470, 18067), (623, 13630), (658, 12905), (890, 9541), (1015, 8366), (1246, 6815), (1363, 6230), (1645, 5162), (2030, 4183), (2581, 3290), (2726, 3115)]