28517355

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{467}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 24048405

約数列:

[1, 3, 5, 9, 15, 23, 45, 59, 69, 115, 177, 207, 295, 345, 467, 531, 885, 1035, 1357, 1401, 2335, 2655, 4071, 4203, 6785, 7005, 10741, 12213, 20355, 21015, 27553, 32223, 53705, 61065, 82659, 96669, 137765, 161115, 247977, 413295, 483345, 633719, 1239885, 1901157, 3168595, 5703471, 9505785, 28517355]

約数ペア:

[(1, 28517355), (3, 9505785), (5, 5703471), (9, 3168595), (15, 1901157), (23, 1239885), (45, 633719), (59, 483345), (69, 413295), (115, 247977), (177, 161115), (207, 137765), (295, 96669), (345, 82659), (467, 61065), (531, 53705), (885, 32223), (1035, 27553), (1357, 21015), (1401, 20355), (2335, 12213), (2655, 10741), (4071, 7005), (4203, 6785)]