20022550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 39015360

約数和(自身を除く): 18992810

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 79, 137, 158, 185, 274, 370, 395, 685, 790, 925, 1370, 1850, 1975, 2923, 3425, 3950, 5069, 5846, 6850, 10138, 10823, 14615, 21646, 25345, 29230, 50690, 54115, 73075, 108230, 126725, 146150, 253450, 270575, 400451, 541150, 800902, 2002255, 4004510, 10011275, 20022550]

約数ペア:

[(1, 20022550), (2, 10011275), (5, 4004510), (10, 2002255), (25, 800902), (37, 541150), (50, 400451), (74, 270575), (79, 253450), (137, 146150), (158, 126725), (185, 108230), (274, 73075), (370, 54115), (395, 50690), (685, 29230), (790, 25345), (925, 21646), (1370, 14615), (1850, 10823), (1975, 10138), (2923, 6850), (3425, 5846), (3950, 5069)]