72665579

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:256

約数の個数: 32

約数和(自身を含む): 90470400

約数和(自身を除く): 17804821

約数列:

[1, 7, 23, 49, 61, 151, 161, 343, 427, 1057, 1127, 1403, 2989, 3473, 7399, 7889, 9211, 9821, 20923, 24311, 51793, 64477, 68747, 170177, 211853, 451339, 481229, 1191239, 1482971, 3159373, 10380797, 72665579]

約数ペア:

[(1, 72665579), (7, 10380797), (23, 3159373), (49, 1482971), (61, 1191239), (151, 481229), (161, 451339), (343, 211853), (427, 170177), (1057, 68747), (1127, 64477), (1403, 51793), (2989, 24311), (3473, 20923), (7399, 9821), (7889, 9211)]