18736290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{509}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 48929400

約数和(自身を除く): 30193110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 409, 509, 818, 1018, 1227, 1527, 2045, 2454, 2545, 3054, 3681, 4090, 4581, 5090, 6135, 7362, 7635, 9162, 12270, 15270, 18405, 22905, 36810, 45810, 208181, 416362, 624543, 1040905, 1249086, 1873629, 2081810, 3122715, 3747258, 6245430, 9368145, 18736290]

約数ペア:

[(1, 18736290), (2, 9368145), (3, 6245430), (5, 3747258), (6, 3122715), (9, 2081810), (10, 1873629), (15, 1249086), (18, 1040905), (30, 624543), (45, 416362), (90, 208181), (409, 45810), (509, 36810), (818, 22905), (1018, 18405), (1227, 15270), (1527, 12270), (2045, 9162), (2454, 7635), (2545, 7362), (3054, 6135), (3681, 5090), (4090, 4581)]