71231540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 155796480

約数和(自身を除く): 84564940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 191, 290, 382, 580, 643, 764, 955, 1286, 1910, 2572, 3215, 3820, 5539, 6430, 11078, 12860, 18647, 22156, 27695, 37294, 55390, 74588, 93235, 110780, 122813, 186470, 245626, 372940, 491252, 614065, 1228130, 2456260, 3561577, 7123154, 14246308, 17807885, 35615770, 71231540]

約数ペア:

[(1, 71231540), (2, 35615770), (4, 17807885), (5, 14246308), (10, 7123154), (20, 3561577), (29, 2456260), (58, 1228130), (116, 614065), (145, 491252), (191, 372940), (290, 245626), (382, 186470), (580, 122813), (643, 110780), (764, 93235), (955, 74588), (1286, 55390), (1910, 37294), (2572, 27695), (3215, 22156), (3820, 18647), (5539, 12860), (6430, 11078)]