12962000

素因数分解:

$2^4\times 5^3\times {\mathrm{6481}}^1$

素因数の和:6504

約数の個数: 40

約数和(自身を含む): 31346952

約数和(自身を除く): 18384952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 6481, 12962, 25924, 32405, 51848, 64810, 103696, 129620, 162025, 259240, 324050, 518480, 648100, 810125, 1296200, 1620250, 2592400, 3240500, 6481000, 12962000]

約数ペア:

[(1, 12962000), (2, 6481000), (4, 3240500), (5, 2592400), (8, 1620250), (10, 1296200), (16, 810125), (20, 648100), (25, 518480), (40, 324050), (50, 259240), (80, 162025), (100, 129620), (125, 103696), (200, 64810), (250, 51848), (400, 32405), (500, 25924), (1000, 12962), (2000, 6481)]