7581990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19441}}^1$

素因数の和:19464

約数の個数: 32

約数和(自身を含む): 19597536

約数和(自身を除く): 12015546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 19441, 38882, 58323, 97205, 116646, 194410, 252733, 291615, 505466, 583230, 758199, 1263665, 1516398, 2527330, 3790995, 7581990]

約数ペア:

[(1, 7581990), (2, 3790995), (3, 2527330), (5, 1516398), (6, 1263665), (10, 758199), (13, 583230), (15, 505466), (26, 291615), (30, 252733), (39, 194410), (65, 116646), (78, 97205), (130, 58323), (195, 38882), (390, 19441)]