128864992

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{211949}}^1$

素因数の和:211978

約数の個数: 24

約数和(自身を含む): 267057000

約数和(自身を除く): 138192008

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 211949, 423898, 847796, 1695592, 3391184, 4027031, 6782368, 8054062, 16108124, 32216248, 64432496, 128864992]

約数ペア:

[(1, 128864992), (2, 64432496), (4, 32216248), (8, 16108124), (16, 8054062), (19, 6782368), (32, 4027031), (38, 3391184), (76, 1695592), (152, 847796), (304, 423898), (608, 211949)]