28778190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19577}}^1$

素因数の和:19601

約数の個数: 48

約数和(自身を含む): 80348112

約数和(自身を除く): 51569922

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 19577, 39154, 58731, 97885, 117462, 137039, 195770, 274078, 293655, 411117, 587310, 685195, 822234, 959273, 1370390, 1918546, 2055585, 2877819, 4111170, 4796365, 5755638, 9592730, 14389095, 28778190]

約数ペア:

[(1, 28778190), (2, 14389095), (3, 9592730), (5, 5755638), (6, 4796365), (7, 4111170), (10, 2877819), (14, 2055585), (15, 1918546), (21, 1370390), (30, 959273), (35, 822234), (42, 685195), (49, 587310), (70, 411117), (98, 293655), (105, 274078), (147, 195770), (210, 137039), (245, 117462), (294, 97885), (490, 58731), (735, 39154), (1470, 19577)]