19377860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 42103152

約数和(自身を除く): 22725292

約数列:

[1, 2, 4, 5, 10, 20, 53, 101, 106, 181, 202, 212, 265, 362, 404, 505, 530, 724, 905, 1010, 1060, 1810, 2020, 3620, 5353, 9593, 10706, 18281, 19186, 21412, 26765, 36562, 38372, 47965, 53530, 73124, 91405, 95930, 107060, 182810, 191860, 365620, 968893, 1937786, 3875572, 4844465, 9688930, 19377860]

約数ペア:

[(1, 19377860), (2, 9688930), (4, 4844465), (5, 3875572), (10, 1937786), (20, 968893), (53, 365620), (101, 191860), (106, 182810), (181, 107060), (202, 95930), (212, 91405), (265, 73124), (362, 53530), (404, 47965), (505, 38372), (530, 36562), (724, 26765), (905, 21412), (1010, 19186), (1060, 18281), (1810, 10706), (2020, 9593), (3620, 5353)]