642135

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 32

約数和(自身を含む): 1149120

約数和(自身を除く): 506985

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 89, 111, 185, 195, 267, 445, 481, 555, 1157, 1335, 1443, 2405, 3293, 3471, 5785, 7215, 9879, 16465, 17355, 42809, 49395, 128427, 214045, 642135]

約数ペア:

[(1, 642135), (3, 214045), (5, 128427), (13, 49395), (15, 42809), (37, 17355), (39, 16465), (65, 9879), (89, 7215), (111, 5785), (185, 3471), (195, 3293), (267, 2405), (445, 1443), (481, 1335), (555, 1157)]