388996860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{926183}}^1$

素因数の和:926202

約数の個数: 48

約数和(自身を含む): 1244791296

約数和(自身を除く): 855794436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 926183, 1852366, 2778549, 3704732, 4630915, 5557098, 6483281, 9261830, 11114196, 12966562, 13892745, 18523660, 19449843, 25933124, 27785490, 32416405, 38899686, 55570980, 64832810, 77799372, 97249215, 129665620, 194498430, 388996860]

約数ペア:

[(1, 388996860), (2, 194498430), (3, 129665620), (4, 97249215), (5, 77799372), (6, 64832810), (7, 55570980), (10, 38899686), (12, 32416405), (14, 27785490), (15, 25933124), (20, 19449843), (21, 18523660), (28, 13892745), (30, 12966562), (35, 11114196), (42, 9261830), (60, 6483281), (70, 5557098), (84, 4630915), (105, 3704732), (140, 2778549), (210, 1852366), (420, 926183)]