18885100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 44962400

約数和(自身を除く): 26077300

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 199, 260, 292, 325, 365, 398, 650, 730, 796, 949, 995, 1300, 1460, 1825, 1898, 1990, 2587, 3650, 3796, 3980, 4745, 4975, 5174, 7300, 9490, 9950, 10348, 12935, 14527, 18980, 19900, 23725, 25870, 29054, 47450, 51740, 58108, 64675, 72635, 94900, 129350, 145270, 188851, 258700, 290540, 363175, 377702, 726350, 755404, 944255, 1452700, 1888510, 3777020, 4721275, 9442550, 18885100]

約数ペア:

[(1, 18885100), (2, 9442550), (4, 4721275), (5, 3777020), (10, 1888510), (13, 1452700), (20, 944255), (25, 755404), (26, 726350), (50, 377702), (52, 363175), (65, 290540), (73, 258700), (100, 188851), (130, 145270), (146, 129350), (199, 94900), (260, 72635), (292, 64675), (325, 58108), (365, 51740), (398, 47450), (650, 29054), (730, 25870), (796, 23725), (949, 19900), (995, 18980), (1300, 14527), (1460, 12935), (1825, 10348), (1898, 9950), (1990, 9490), (2587, 7300), (3650, 5174), (3796, 4975), (3980, 4745)]