1439395220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1\times {\mathrm{1801}}^1$

素因数の和:2348

約数の個数: 48

約数和(自身を含む): 3065202000

約数和(自身を除く): 1625806780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 449, 890, 898, 1780, 1796, 1801, 2245, 3602, 4490, 7204, 8980, 9005, 18010, 36020, 39961, 79922, 159844, 160289, 199805, 320578, 399610, 641156, 799220, 801445, 808649, 1602890, 1617298, 3205780, 3234596, 4043245, 8086490, 16172980, 71969761, 143939522, 287879044, 359848805, 719697610, 1439395220]

約数ペア:

[(1, 1439395220), (2, 719697610), (4, 359848805), (5, 287879044), (10, 143939522), (20, 71969761), (89, 16172980), (178, 8086490), (356, 4043245), (445, 3234596), (449, 3205780), (890, 1617298), (898, 1602890), (1780, 808649), (1796, 801445), (1801, 799220), (2245, 641156), (3602, 399610), (4490, 320578), (7204, 199805), (8980, 160289), (9005, 159844), (18010, 79922), (36020, 39961)]