19415890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{641}}^1$

素因数の和:894

約数の個数: 32

約数和(自身を含む): 37857456

約数和(自身を除く): 18441566

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 233, 466, 641, 1165, 1282, 2330, 3029, 3205, 6058, 6410, 8333, 15145, 16666, 30290, 41665, 83330, 149353, 298706, 746765, 1493530, 1941589, 3883178, 9707945, 19415890]

約数ペア:

[(1, 19415890), (2, 9707945), (5, 3883178), (10, 1941589), (13, 1493530), (26, 746765), (65, 298706), (130, 149353), (233, 83330), (466, 41665), (641, 30290), (1165, 16666), (1282, 15145), (2330, 8333), (3029, 6410), (3205, 6058)]