19871530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 43868160

約数和(自身を除く): 23996630

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 67, 70, 95, 133, 134, 190, 223, 266, 335, 446, 469, 665, 670, 938, 1115, 1273, 1330, 1561, 2230, 2345, 2546, 3122, 4237, 4690, 6365, 7805, 8474, 8911, 12730, 14941, 15610, 17822, 21185, 29659, 29882, 42370, 44555, 59318, 74705, 89110, 104587, 148295, 149410, 209174, 283879, 296590, 522935, 567758, 1045870, 1419395, 1987153, 2838790, 3974306, 9935765, 19871530]

約数ペア:

[(1, 19871530), (2, 9935765), (5, 3974306), (7, 2838790), (10, 1987153), (14, 1419395), (19, 1045870), (35, 567758), (38, 522935), (67, 296590), (70, 283879), (95, 209174), (133, 149410), (134, 148295), (190, 104587), (223, 89110), (266, 74705), (335, 59318), (446, 44555), (469, 42370), (665, 29882), (670, 29659), (938, 21185), (1115, 17822), (1273, 15610), (1330, 14941), (1561, 12730), (2230, 8911), (2345, 8474), (2546, 7805), (3122, 6365), (4237, 4690)]