1987656016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{20981}}^1$

素因数の和:21211

約数の個数: 40

約数和(自身を含む): 3996315648

約数和(自身を除く): 2008659632

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 191, 248, 382, 496, 764, 1528, 3056, 5921, 11842, 20981, 23684, 41962, 47368, 83924, 94736, 167848, 335696, 650411, 1300822, 2601644, 4007371, 5203288, 8014742, 10406576, 16029484, 32058968, 64117936, 124228501, 248457002, 496914004, 993828008, 1987656016]

約数ペア:

[(1, 1987656016), (2, 993828008), (4, 496914004), (8, 248457002), (16, 124228501), (31, 64117936), (62, 32058968), (124, 16029484), (191, 10406576), (248, 8014742), (382, 5203288), (496, 4007371), (764, 2601644), (1528, 1300822), (3056, 650411), (5921, 335696), (11842, 167848), (20981, 94736), (23684, 83924), (41962, 47368)]