72978164

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137177}}^1$

素因数の和:137207

約数の個数: 24

約数和(自身を含む): 153639360

約数和(自身を除く): 80661196

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 137177, 274354, 548708, 960239, 1920478, 2606363, 3840956, 5212726, 10425452, 18244541, 36489082, 72978164]

約数ペア:

[(1, 72978164), (2, 36489082), (4, 18244541), (7, 10425452), (14, 5212726), (19, 3840956), (28, 2606363), (38, 1920478), (76, 960239), (133, 548708), (266, 274354), (532, 137177)]