128896840

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28517}}^1$

素因数の和:28641

約数の個数: 32

約数和(自身を含む): 292594680

約数和(自身を除く): 163697840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 28517, 57034, 114068, 142585, 228136, 285170, 570340, 1140680, 3222421, 6444842, 12889684, 16112105, 25779368, 32224210, 64448420, 128896840]

約数ペア:

[(1, 128896840), (2, 64448420), (4, 32224210), (5, 25779368), (8, 16112105), (10, 12889684), (20, 6444842), (40, 3222421), (113, 1140680), (226, 570340), (452, 285170), (565, 228136), (904, 142585), (1130, 114068), (2260, 57034), (4520, 28517)]