19320455

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 30139776

約数和(自身を除く): 10819321

約数列:

[1, 5, 7, 11, 35, 49, 55, 67, 77, 107, 245, 335, 385, 469, 535, 539, 737, 749, 1177, 2345, 2695, 3283, 3685, 3745, 5159, 5243, 5885, 7169, 8239, 16415, 25795, 26215, 35845, 36113, 41195, 50183, 57673, 78859, 180565, 250915, 288365, 351281, 394295, 552013, 1756405, 2760065, 3864091, 19320455]

約数ペア:

[(1, 19320455), (5, 3864091), (7, 2760065), (11, 1756405), (35, 552013), (49, 394295), (55, 351281), (67, 288365), (77, 250915), (107, 180565), (245, 78859), (335, 57673), (385, 50183), (469, 41195), (535, 36113), (539, 35845), (737, 26215), (749, 25795), (1177, 16415), (2345, 8239), (2695, 7169), (3283, 5885), (3685, 5243), (3745, 5159)]