91917820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 211226400

約数和(自身を除く): 119308580

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 361, 380, 439, 551, 580, 722, 878, 1102, 1444, 1756, 1805, 2195, 2204, 2755, 3610, 4390, 5510, 7220, 8341, 8780, 10469, 11020, 12731, 16682, 20938, 25462, 33364, 41705, 41876, 50924, 52345, 63655, 83410, 104690, 127310, 158479, 166820, 209380, 241889, 254620, 316958, 483778, 633916, 792395, 967556, 1209445, 1584790, 2418890, 3169580, 4595891, 4837780, 9191782, 18383564, 22979455, 45958910, 91917820]

約数ペア:

[(1, 91917820), (2, 45958910), (4, 22979455), (5, 18383564), (10, 9191782), (19, 4837780), (20, 4595891), (29, 3169580), (38, 2418890), (58, 1584790), (76, 1209445), (95, 967556), (116, 792395), (145, 633916), (190, 483778), (290, 316958), (361, 254620), (380, 241889), (439, 209380), (551, 166820), (580, 158479), (722, 127310), (878, 104690), (1102, 83410), (1444, 63655), (1756, 52345), (1805, 50924), (2195, 41876), (2204, 41705), (2755, 33364), (3610, 25462), (4390, 20938), (5510, 16682), (7220, 12731), (8341, 11020), (8780, 10469)]