78902068

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{90901}}^1$

素因数の和:90943

約数の個数: 24

約数和(自身を含む): 162896384

約数和(自身を除く): 83994316

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 90901, 181802, 363604, 636307, 1272614, 2545228, 2817931, 5635862, 11271724, 19725517, 39451034, 78902068]

約数ペア:

[(1, 78902068), (2, 39451034), (4, 19725517), (7, 11271724), (14, 5635862), (28, 2817931), (31, 2545228), (62, 1272614), (124, 636307), (217, 363604), (434, 181802), (868, 90901)]