188784820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3203}}^1$

素因数の和:3640

約数の個数: 48

約数和(自身を含む): 454301568

約数和(自身を除く): 265516748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 842, 1684, 2105, 2947, 3203, 4210, 5894, 6406, 8420, 11788, 12812, 14735, 16015, 22421, 29470, 32030, 44842, 58940, 64060, 89684, 112105, 224210, 448420, 1348463, 2696926, 5393852, 6742315, 9439241, 13484630, 18878482, 26969260, 37756964, 47196205, 94392410, 188784820]

約数ペア:

[(1, 188784820), (2, 94392410), (4, 47196205), (5, 37756964), (7, 26969260), (10, 18878482), (14, 13484630), (20, 9439241), (28, 6742315), (35, 5393852), (70, 2696926), (140, 1348463), (421, 448420), (842, 224210), (1684, 112105), (2105, 89684), (2947, 64060), (3203, 58940), (4210, 44842), (5894, 32030), (6406, 29470), (8420, 22421), (11788, 16015), (12812, 14735)]