128987776

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{32507}}^1$

素因数の和:32552

約数の個数: 32

約数和(自身を含む): 265265280

約数和(自身を除く): 136277504

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 32507, 65014, 130028, 260056, 520112, 1007717, 1040224, 2015434, 2080448, 4030868, 4160896, 8061736, 16123472, 32246944, 64493888, 128987776]

約数ペア:

[(1, 128987776), (2, 64493888), (4, 32246944), (8, 16123472), (16, 8061736), (31, 4160896), (32, 4030868), (62, 2080448), (64, 2015434), (124, 1040224), (128, 1007717), (248, 520112), (496, 260056), (992, 130028), (1984, 65014), (3968, 32507)]