10405000

素因数分解:

$2^3\times 5^4\times {\mathrm{2081}}^1$

素因数の和:2107

約数の個数: 40

約数和(自身を含む): 24390630

約数和(自身を除く): 13985630

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2081, 2500, 4162, 5000, 8324, 10405, 16648, 20810, 41620, 52025, 83240, 104050, 208100, 260125, 416200, 520250, 1040500, 1300625, 2081000, 2601250, 5202500, 10405000]

約数ペア:

[(1, 10405000), (2, 5202500), (4, 2601250), (5, 2081000), (8, 1300625), (10, 1040500), (20, 520250), (25, 416200), (40, 260125), (50, 208100), (100, 104050), (125, 83240), (200, 52025), (250, 41620), (500, 20810), (625, 16648), (1000, 10405), (1250, 8324), (2081, 5000), (2500, 4162)]