1392978280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{4447}}^1$

素因数の和:4690

約数の個数: 64

約数和(自身を含む): 3228180480

約数和(自身を除く): 1835202200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 191, 205, 328, 382, 410, 764, 820, 955, 1528, 1640, 1910, 3820, 4447, 7640, 7831, 8894, 15662, 17788, 22235, 31324, 35576, 39155, 44470, 62648, 78310, 88940, 156620, 177880, 182327, 313240, 364654, 729308, 849377, 911635, 1458616, 1698754, 1823270, 3397508, 3646540, 4246885, 6795016, 7293080, 8493770, 16987540, 33975080, 34824457, 69648914, 139297828, 174122285, 278595656, 348244570, 696489140, 1392978280]

約数ペア:

[(1, 1392978280), (2, 696489140), (4, 348244570), (5, 278595656), (8, 174122285), (10, 139297828), (20, 69648914), (40, 34824457), (41, 33975080), (82, 16987540), (164, 8493770), (191, 7293080), (205, 6795016), (328, 4246885), (382, 3646540), (410, 3397508), (764, 1823270), (820, 1698754), (955, 1458616), (1528, 911635), (1640, 849377), (1910, 729308), (3820, 364654), (4447, 313240), (7640, 182327), (7831, 177880), (8894, 156620), (15662, 88940), (17788, 78310), (22235, 62648), (31324, 44470), (35576, 39155)]