20806140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18251}}^1$

素因数の和:18282

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 40520580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18251, 36502, 54753, 73004, 91255, 109506, 182510, 219012, 273765, 346769, 365020, 547530, 693538, 1040307, 1095060, 1387076, 1733845, 2080614, 3467690, 4161228, 5201535, 6935380, 10403070, 20806140]

約数ペア:

[(1, 20806140), (2, 10403070), (3, 6935380), (4, 5201535), (5, 4161228), (6, 3467690), (10, 2080614), (12, 1733845), (15, 1387076), (19, 1095060), (20, 1040307), (30, 693538), (38, 547530), (57, 365020), (60, 346769), (76, 273765), (95, 219012), (114, 182510), (190, 109506), (228, 91255), (285, 73004), (380, 54753), (570, 36502), (1140, 18251)]