18970390

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 35113824

約数和(自身を除く): 16143434

約数列:

[1, 2, 5, 10, 61, 122, 137, 227, 274, 305, 454, 610, 685, 1135, 1370, 2270, 8357, 13847, 16714, 27694, 31099, 41785, 62198, 69235, 83570, 138470, 155495, 310990, 1897039, 3794078, 9485195, 18970390]

約数ペア:

[(1, 18970390), (2, 9485195), (5, 3794078), (10, 1897039), (61, 310990), (122, 155495), (137, 138470), (227, 83570), (274, 69235), (305, 62198), (454, 41785), (610, 31099), (685, 27694), (1135, 16714), (1370, 13847), (2270, 8357)]