1215221445

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:847

約数の個数: 72

約数和(自身を含む): 2236066560

約数和(自身を除く): 1020845115

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 345, 355, 529, 639, 719, 1035, 1065, 1587, 1633, 2157, 2645, 3195, 3595, 4761, 4899, 6471, 7935, 8165, 10785, 14697, 16537, 23805, 24495, 32355, 37559, 49611, 51049, 73485, 82685, 112677, 148833, 153147, 187795, 248055, 255245, 338031, 380351, 459441, 563385, 744165, 765735, 1141053, 1174127, 1690155, 1901755, 2297205, 3423159, 3522381, 5705265, 5870635, 10567143, 17115795, 17611905, 27004921, 52835715, 81014763, 135024605, 243044289, 405073815, 1215221445]

約数ペア:

[(1, 1215221445), (3, 405073815), (5, 243044289), (9, 135024605), (15, 81014763), (23, 52835715), (45, 27004921), (69, 17611905), (71, 17115795), (115, 10567143), (207, 5870635), (213, 5705265), (345, 3522381), (355, 3423159), (529, 2297205), (639, 1901755), (719, 1690155), (1035, 1174127), (1065, 1141053), (1587, 765735), (1633, 744165), (2157, 563385), (2645, 459441), (3195, 380351), (3595, 338031), (4761, 255245), (4899, 248055), (6471, 187795), (7935, 153147), (8165, 148833), (10785, 112677), (14697, 82685), (16537, 73485), (23805, 51049), (24495, 49611), (32355, 37559)]