388601775

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{90901}}^1$

素因数の和:90936

約数の個数: 36

約数和(自身を含む): 732670120

約数和(自身を除く): 344068345

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 90901, 272703, 454505, 818109, 1363515, 1727119, 2272525, 4090545, 5181357, 6817575, 8635595, 15544071, 20452725, 25906785, 43177975, 77720355, 129533925, 388601775]

約数ペア:

[(1, 388601775), (3, 129533925), (5, 77720355), (9, 43177975), (15, 25906785), (19, 20452725), (25, 15544071), (45, 8635595), (57, 6817575), (75, 5181357), (95, 4090545), (171, 2272525), (225, 1727119), (285, 1363515), (475, 818109), (855, 454505), (1425, 272703), (4275, 90901)]