20823530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{467}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26350870

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 455, 467, 490, 637, 686, 910, 934, 1274, 1715, 2335, 3185, 3269, 3430, 4459, 4670, 6071, 6370, 6538, 8918, 12142, 16345, 22295, 22883, 30355, 32690, 42497, 44590, 45766, 60710, 84994, 114415, 160181, 212485, 228830, 297479, 320362, 424970, 594958, 800905, 1487395, 1601810, 2082353, 2974790, 4164706, 10411765, 20823530]

約数ペア:

[(1, 20823530), (2, 10411765), (5, 4164706), (7, 2974790), (10, 2082353), (13, 1601810), (14, 1487395), (26, 800905), (35, 594958), (49, 424970), (65, 320362), (70, 297479), (91, 228830), (98, 212485), (130, 160181), (182, 114415), (245, 84994), (343, 60710), (455, 45766), (467, 44590), (490, 42497), (637, 32690), (686, 30355), (910, 22883), (934, 22295), (1274, 16345), (1715, 12142), (2335, 8918), (3185, 6538), (3269, 6370), (3430, 6071), (4459, 4670)]