280538390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{41809}}^1$

素因数の和:41888

約数の個数: 32

約数和(自身を含む): 559919520

約数和(自身を除く): 279381130

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 305, 610, 671, 1342, 3355, 6710, 41809, 83618, 209045, 418090, 459899, 919798, 2299495, 2550349, 4598990, 5100698, 12751745, 25503490, 28053839, 56107678, 140269195, 280538390]

約数ペア:

[(1, 280538390), (2, 140269195), (5, 56107678), (10, 28053839), (11, 25503490), (22, 12751745), (55, 5100698), (61, 4598990), (110, 2550349), (122, 2299495), (305, 919798), (610, 459899), (671, 418090), (1342, 209045), (3355, 83618), (6710, 41809)]