20981558130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{467}}^1\times {\mathrm{115201}}^1$

素因数の和:115691

約数の個数: 64

約数和(自身を含む): 54345852288

約数和(自身を除く): 33364294158

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 467, 934, 1401, 2335, 2802, 4670, 6071, 7005, 12142, 14010, 18213, 30355, 36426, 60710, 91065, 115201, 182130, 230402, 345603, 576005, 691206, 1152010, 1497613, 1728015, 2995226, 3456030, 4492839, 7488065, 8985678, 14976130, 22464195, 44928390, 53798867, 107597734, 161396601, 268994335, 322793202, 537988670, 699385271, 806983005, 1398770542, 1613966010, 2098155813, 3496926355, 4196311626, 6993852710, 10490779065, 20981558130]

約数ペア:

[(1, 20981558130), (2, 10490779065), (3, 6993852710), (5, 4196311626), (6, 3496926355), (10, 2098155813), (13, 1613966010), (15, 1398770542), (26, 806983005), (30, 699385271), (39, 537988670), (65, 322793202), (78, 268994335), (130, 161396601), (195, 107597734), (390, 53798867), (467, 44928390), (934, 22464195), (1401, 14976130), (2335, 8985678), (2802, 7488065), (4670, 4492839), (6071, 3456030), (7005, 2995226), (12142, 1728015), (14010, 1497613), (18213, 1152010), (30355, 691206), (36426, 576005), (60710, 345603), (91065, 230402), (115201, 182130)]