71317940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{787}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 157272192

約数和(自身を除く): 85954252

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 394, 460, 787, 788, 985, 1574, 1970, 3148, 3935, 3940, 4531, 7870, 9062, 15740, 18101, 18124, 22655, 36202, 45310, 72404, 90505, 90620, 155039, 181010, 310078, 362020, 620156, 775195, 1550390, 3100780, 3565897, 7131794, 14263588, 17829485, 35658970, 71317940]

約数ペア:

[(1, 71317940), (2, 35658970), (4, 17829485), (5, 14263588), (10, 7131794), (20, 3565897), (23, 3100780), (46, 1550390), (92, 775195), (115, 620156), (197, 362020), (230, 310078), (394, 181010), (460, 155039), (787, 90620), (788, 90505), (985, 72404), (1574, 45310), (1970, 36202), (3148, 22655), (3935, 18124), (3940, 18101), (4531, 15740), (7870, 9062)]