18839275

素因数分解:

$5^2\times 7^3\times {\mathrm{13}}^3$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 29512000

約数和(自身を除く): 10672725

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 169, 175, 245, 325, 343, 455, 637, 845, 1183, 1225, 1715, 2197, 2275, 3185, 4225, 4459, 5915, 8281, 8575, 10985, 15379, 15925, 22295, 29575, 41405, 54925, 57967, 76895, 107653, 111475, 207025, 289835, 384475, 538265, 753571, 1449175, 2691325, 3767855, 18839275]

約数ペア:

[(1, 18839275), (5, 3767855), (7, 2691325), (13, 1449175), (25, 753571), (35, 538265), (49, 384475), (65, 289835), (91, 207025), (169, 111475), (175, 107653), (245, 76895), (325, 57967), (343, 54925), (455, 41405), (637, 29575), (845, 22295), (1183, 15925), (1225, 15379), (1715, 10985), (2197, 8575), (2275, 8281), (3185, 5915), (4225, 4459)]