65210480

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2621}}^1$

素因数の和:2945

約数の個数: 40

約数和(自身を含む): 152159904

約数和(自身を除く): 86949424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2488, 2621, 3110, 4976, 5242, 6220, 10484, 12440, 13105, 20968, 24880, 26210, 41936, 52420, 104840, 209680, 815131, 1630262, 3260524, 4075655, 6521048, 8151310, 13042096, 16302620, 32605240, 65210480]

約数ペア:

[(1, 65210480), (2, 32605240), (4, 16302620), (5, 13042096), (8, 8151310), (10, 6521048), (16, 4075655), (20, 3260524), (40, 1630262), (80, 815131), (311, 209680), (622, 104840), (1244, 52420), (1555, 41936), (2488, 26210), (2621, 24880), (3110, 20968), (4976, 13105), (5242, 12440), (6220, 10484)]