20821010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8039}}^1$

素因数の和:8090

約数の個数: 32

約数和(自身を含む): 43994880

約数和(自身を除く): 23173870

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 8039, 16078, 40195, 56273, 80390, 112546, 281365, 297443, 562730, 594886, 1487215, 2082101, 2974430, 4164202, 10410505, 20821010]

約数ペア:

[(1, 20821010), (2, 10410505), (5, 4164202), (7, 2974430), (10, 2082101), (14, 1487215), (35, 594886), (37, 562730), (70, 297443), (74, 281365), (185, 112546), (259, 80390), (370, 56273), (518, 40195), (1295, 16078), (2590, 8039)]