387492020

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{33931}}^1$

素因数の和:34511

約数の個数: 24

約数和(自身を含む): 815182368

約数和(自身を除く): 427690348

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420, 33931, 67862, 135724, 169655, 339310, 678620, 19374601, 38749202, 77498404, 96873005, 193746010, 387492020]

約数ペア:

[(1, 387492020), (2, 193746010), (4, 96873005), (5, 77498404), (10, 38749202), (20, 19374601), (571, 678620), (1142, 339310), (2284, 169655), (2855, 135724), (5710, 67862), (11420, 33931)]