12839560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7829}}^1$

素因数の和:7881

約数の個数: 32

約数和(自身を含む): 29597400

約数和(自身を除く): 16757840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7829, 15658, 31316, 39145, 62632, 78290, 156580, 313160, 320989, 641978, 1283956, 1604945, 2567912, 3209890, 6419780, 12839560]

約数ペア:

[(1, 12839560), (2, 6419780), (4, 3209890), (5, 2567912), (8, 1604945), (10, 1283956), (20, 641978), (40, 320989), (41, 313160), (82, 156580), (164, 78290), (205, 62632), (328, 39145), (410, 31316), (820, 15658), (1640, 7829)]