205855420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1867}}^1$

素因数の和:2062

約数の個数: 48

約数和(自身を含む): 447199200

約数和(自身を除く): 241343780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 298, 370, 596, 740, 745, 1490, 1867, 2980, 3734, 5513, 7468, 9335, 11026, 18670, 22052, 27565, 37340, 55130, 69079, 110260, 138158, 276316, 278183, 345395, 556366, 690790, 1112732, 1381580, 1390915, 2781830, 5563660, 10292771, 20585542, 41171084, 51463855, 102927710, 205855420]

約数ペア:

[(1, 205855420), (2, 102927710), (4, 51463855), (5, 41171084), (10, 20585542), (20, 10292771), (37, 5563660), (74, 2781830), (148, 1390915), (149, 1381580), (185, 1112732), (298, 690790), (370, 556366), (596, 345395), (740, 278183), (745, 276316), (1490, 138158), (1867, 110260), (2980, 69079), (3734, 55130), (5513, 37340), (7468, 27565), (9335, 22052), (11026, 18670)]