20307308

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 42638400

約数和(自身を除く): 22331092

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 89, 116, 178, 203, 281, 356, 406, 562, 623, 812, 1124, 1246, 1967, 2492, 2581, 3934, 5162, 7868, 8149, 10324, 16298, 18067, 25009, 32596, 36134, 50018, 57043, 72268, 100036, 114086, 175063, 228172, 350126, 700252, 725261, 1450522, 2901044, 5076827, 10153654, 20307308]

約数ペア:

[(1, 20307308), (2, 10153654), (4, 5076827), (7, 2901044), (14, 1450522), (28, 725261), (29, 700252), (58, 350126), (89, 228172), (116, 175063), (178, 114086), (203, 100036), (281, 72268), (356, 57043), (406, 50018), (562, 36134), (623, 32596), (812, 25009), (1124, 18067), (1246, 16298), (1967, 10324), (2492, 8149), (2581, 7868), (3934, 5162)]