645465884

素因数分解:

$2^2\times 7^1\times {\mathrm{1229}}^1\times {\mathrm{18757}}^1$

素因数の和:19997

約数の個数: 24

約数和(自身を含む): 1292051040

約数和(自身を除く): 646585156

約数列:

[1, 2, 4, 7, 14, 28, 1229, 2458, 4916, 8603, 17206, 18757, 34412, 37514, 75028, 131299, 262598, 525196, 23052353, 46104706, 92209412, 161366471, 322732942, 645465884]

約数ペア:

[(1, 645465884), (2, 322732942), (4, 161366471), (7, 92209412), (14, 46104706), (28, 23052353), (1229, 525196), (2458, 262598), (4916, 131299), (8603, 75028), (17206, 37514), (18757, 34412)]