19769230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{631}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 38541888

約数和(自身を除く): 18772658

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 241, 482, 631, 1205, 1262, 2410, 3133, 3155, 6266, 6310, 8203, 15665, 16406, 31330, 41015, 82030, 152071, 304142, 760355, 1520710, 1976923, 3953846, 9884615, 19769230]

約数ペア:

[(1, 19769230), (2, 9884615), (5, 3953846), (10, 1976923), (13, 1520710), (26, 760355), (65, 304142), (130, 152071), (241, 82030), (482, 41015), (631, 31330), (1205, 16406), (1262, 15665), (2410, 8203), (3133, 6310), (3155, 6266)]