15957990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{631}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 41704416

約数和(自身を除く): 25746426

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 281, 562, 631, 843, 1262, 1405, 1686, 1893, 2529, 2810, 3155, 3786, 4215, 5058, 5679, 6310, 8430, 9465, 11358, 12645, 18930, 25290, 28395, 56790, 177311, 354622, 531933, 886555, 1063866, 1595799, 1773110, 2659665, 3191598, 5319330, 7978995, 15957990]

約数ペア:

[(1, 15957990), (2, 7978995), (3, 5319330), (5, 3191598), (6, 2659665), (9, 1773110), (10, 1595799), (15, 1063866), (18, 886555), (30, 531933), (45, 354622), (90, 177311), (281, 56790), (562, 28395), (631, 25290), (843, 18930), (1262, 12645), (1405, 11358), (1686, 9465), (1893, 8430), (2529, 6310), (2810, 5679), (3155, 5058), (3786, 4215)]