13025000

素因数分解:

$2^3\times 5^5\times {\mathrm{521}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 30583980

約数和(自身を除く): 17558980

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 521, 625, 1000, 1042, 1250, 2084, 2500, 2605, 3125, 4168, 5000, 5210, 6250, 10420, 12500, 13025, 20840, 25000, 26050, 52100, 65125, 104200, 130250, 260500, 325625, 521000, 651250, 1302500, 1628125, 2605000, 3256250, 6512500, 13025000]

約数ペア:

[(1, 13025000), (2, 6512500), (4, 3256250), (5, 2605000), (8, 1628125), (10, 1302500), (20, 651250), (25, 521000), (40, 325625), (50, 260500), (100, 130250), (125, 104200), (200, 65125), (250, 52100), (500, 26050), (521, 25000), (625, 20840), (1000, 13025), (1042, 12500), (1250, 10420), (2084, 6250), (2500, 5210), (2605, 5000), (3125, 4168)]