131078240

素因数分解:

$2^5\times 5^1\times {\mathrm{819239}}^1$

素因数の和:819254

約数の個数: 24

約数和(自身を含む): 309672720

約数和(自身を除く): 178594480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 819239, 1638478, 3276956, 4096195, 6553912, 8192390, 13107824, 16384780, 26215648, 32769560, 65539120, 131078240]

約数ペア:

[(1, 131078240), (2, 65539120), (4, 32769560), (5, 26215648), (8, 16384780), (10, 13107824), (16, 8192390), (20, 6553912), (32, 4096195), (40, 3276956), (80, 1638478), (160, 819239)]