19762925

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:127

約数の個数: 72

約数和(自身を含む): 32951016

約数和(自身を除く): 13188091

約数列:

[1, 5, 7, 13, 17, 25, 35, 49, 65, 73, 85, 91, 119, 175, 221, 245, 325, 365, 425, 455, 511, 595, 637, 833, 949, 1105, 1225, 1241, 1547, 1825, 2275, 2555, 2975, 3185, 3577, 4165, 4745, 5525, 6205, 6643, 7735, 8687, 10829, 12775, 15925, 16133, 17885, 20825, 23725, 31025, 33215, 38675, 43435, 46501, 54145, 60809, 80665, 89425, 112931, 166075, 217175, 232505, 270725, 304045, 403325, 564655, 790517, 1162525, 1520225, 2823275, 3952585, 19762925]

約数ペア:

[(1, 19762925), (5, 3952585), (7, 2823275), (13, 1520225), (17, 1162525), (25, 790517), (35, 564655), (49, 403325), (65, 304045), (73, 270725), (85, 232505), (91, 217175), (119, 166075), (175, 112931), (221, 89425), (245, 80665), (325, 60809), (365, 54145), (425, 46501), (455, 43435), (511, 38675), (595, 33215), (637, 31025), (833, 23725), (949, 20825), (1105, 17885), (1225, 16133), (1241, 15925), (1547, 12775), (1825, 10829), (2275, 8687), (2555, 7735), (2975, 6643), (3185, 6205), (3577, 5525), (4165, 4745)]