400908285

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 757177344

約数和(自身を除く): 356269059

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 193, 207, 223, 345, 405, 579, 621, 669, 965, 1035, 1115, 1737, 1863, 2007, 2895, 3105, 3345, 4439, 5129, 5211, 6021, 8685, 9315, 10035, 13317, 15387, 15633, 18063, 22195, 25645, 26055, 30105, 39951, 43039, 46161, 66585, 76935, 78165, 90315, 119853, 129117, 138483, 199755, 215195, 230805, 359559, 387351, 415449, 599265, 645585, 692415, 989897, 1162053, 1797795, 1936755, 2077245, 2969691, 3486159, 4949485, 5810265, 8909073, 14848455, 17430795, 26727219, 44545365, 80181657, 133636095, 400908285]

約数ペア:

[(1, 400908285), (3, 133636095), (5, 80181657), (9, 44545365), (15, 26727219), (23, 17430795), (27, 14848455), (45, 8909073), (69, 5810265), (81, 4949485), (115, 3486159), (135, 2969691), (193, 2077245), (207, 1936755), (223, 1797795), (345, 1162053), (405, 989897), (579, 692415), (621, 645585), (669, 599265), (965, 415449), (1035, 387351), (1115, 359559), (1737, 230805), (1863, 215195), (2007, 199755), (2895, 138483), (3105, 129117), (3345, 119853), (4439, 90315), (5129, 78165), (5211, 76935), (6021, 66585), (8685, 46161), (9315, 43039), (10035, 39951), (13317, 30105), (15387, 26055), (15633, 25645), (18063, 22195)]