320355

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{113}}^1$

素因数の和:137

約数の個数: 40

約数和(自身を含む): 662112

約数和(自身を除く): 341757

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 113, 135, 189, 315, 339, 405, 565, 567, 791, 945, 1017, 1695, 2373, 2835, 3051, 3955, 5085, 7119, 9153, 11865, 15255, 21357, 35595, 45765, 64071, 106785, 320355]

約数ペア:

[(1, 320355), (3, 106785), (5, 64071), (7, 45765), (9, 35595), (15, 21357), (21, 15255), (27, 11865), (35, 9153), (45, 7119), (63, 5085), (81, 3955), (105, 3051), (113, 2835), (135, 2373), (189, 1695), (315, 1017), (339, 945), (405, 791), (565, 567)]