20384392

素因数分解:

$2^3\times 7^2\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 44887500

約数和(自身を除く): 24503108

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 149, 196, 298, 349, 392, 596, 698, 1043, 1192, 1396, 2086, 2443, 2792, 4172, 4886, 7301, 8344, 9772, 14602, 17101, 19544, 29204, 34202, 52001, 58408, 68404, 104002, 136808, 208004, 364007, 416008, 728014, 1456028, 2548049, 2912056, 5096098, 10192196, 20384392]

約数ペア:

[(1, 20384392), (2, 10192196), (4, 5096098), (7, 2912056), (8, 2548049), (14, 1456028), (28, 728014), (49, 416008), (56, 364007), (98, 208004), (149, 136808), (196, 104002), (298, 68404), (349, 58408), (392, 52001), (596, 34202), (698, 29204), (1043, 19544), (1192, 17101), (1396, 14602), (2086, 9772), (2443, 8344), (2792, 7301), (4172, 4886)]