19268515

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 28892160

約数和(自身を除く): 9623645

約数列:

[1, 5, 7, 31, 35, 43, 49, 59, 155, 215, 217, 245, 295, 301, 413, 1085, 1333, 1505, 1519, 1829, 2065, 2107, 2537, 2891, 6665, 7595, 9145, 9331, 10535, 12685, 12803, 14455, 17759, 46655, 64015, 65317, 78647, 88795, 89621, 124313, 326585, 393235, 448105, 550529, 621565, 2752645, 3853703, 19268515]

約数ペア:

[(1, 19268515), (5, 3853703), (7, 2752645), (31, 621565), (35, 550529), (43, 448105), (49, 393235), (59, 326585), (155, 124313), (215, 89621), (217, 88795), (245, 78647), (295, 65317), (301, 64015), (413, 46655), (1085, 17759), (1333, 14455), (1505, 12803), (1519, 12685), (1829, 10535), (2065, 9331), (2107, 9145), (2537, 7595), (2891, 6665)]