1878972016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{131507}}^1$

素因数の和:131581

約数の個数: 40

約数和(自身を含む): 3913678080

約数和(自身を除く): 2034706064

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1786, 3572, 7144, 14288, 131507, 263014, 526028, 1052056, 2104112, 2498633, 4997266, 6180829, 9994532, 12361658, 19989064, 24723316, 39978128, 49446632, 98893264, 117435751, 234871502, 469743004, 939486008, 1878972016]

約数ペア:

[(1, 1878972016), (2, 939486008), (4, 469743004), (8, 234871502), (16, 117435751), (19, 98893264), (38, 49446632), (47, 39978128), (76, 24723316), (94, 19989064), (152, 12361658), (188, 9994532), (304, 6180829), (376, 4997266), (752, 2498633), (893, 2104112), (1786, 1052056), (3572, 526028), (7144, 263014), (14288, 131507)]