28319860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 32926220

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 167, 244, 278, 305, 334, 556, 610, 668, 695, 835, 1220, 1390, 1670, 2780, 3340, 8479, 10187, 16958, 20374, 23213, 33916, 40748, 42395, 46426, 50935, 84790, 92852, 101870, 116065, 169580, 203740, 232130, 464260, 1415993, 2831986, 5663972, 7079965, 14159930, 28319860]

約数ペア:

[(1, 28319860), (2, 14159930), (4, 7079965), (5, 5663972), (10, 2831986), (20, 1415993), (61, 464260), (122, 232130), (139, 203740), (167, 169580), (244, 116065), (278, 101870), (305, 92852), (334, 84790), (556, 50935), (610, 46426), (668, 42395), (695, 40748), (835, 33916), (1220, 23213), (1390, 20374), (1670, 16958), (2780, 10187), (3340, 8479)]