145918280

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27847}}^1$

素因数の和:27989

約数の個数: 32

約数和(自身を含む): 330834240

約数和(自身を除く): 184915960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 27847, 55694, 111388, 139235, 222776, 278470, 556940, 1113880, 3647957, 7295914, 14591828, 18239785, 29183656, 36479570, 72959140, 145918280]

約数ペア:

[(1, 145918280), (2, 72959140), (4, 36479570), (5, 29183656), (8, 18239785), (10, 14591828), (20, 7295914), (40, 3647957), (131, 1113880), (262, 556940), (524, 278470), (655, 222776), (1048, 139235), (1310, 111388), (2620, 55694), (5240, 27847)]