128408050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{42101}}^1$

素因数の和:42174

約数の個数: 24

約数和(自身を含む): 242760132

約数和(自身を除く): 114352082

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 42101, 84202, 210505, 421010, 1052525, 2105050, 2568161, 5136322, 12840805, 25681610, 64204025, 128408050]

約数ペア:

[(1, 128408050), (2, 64204025), (5, 25681610), (10, 12840805), (25, 5136322), (50, 2568161), (61, 2105050), (122, 1052525), (305, 421010), (610, 210505), (1525, 84202), (3050, 42101)]