205533410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:339

約数の個数: 64

約数和(自身を含む): 397522944

約数和(自身を除く): 191989534

約数列:

[1, 2, 5, 10, 31, 41, 62, 82, 103, 155, 157, 205, 206, 310, 314, 410, 515, 785, 1030, 1271, 1570, 2542, 3193, 4223, 4867, 6355, 6386, 6437, 8446, 9734, 12710, 12874, 15965, 16171, 21115, 24335, 31930, 32185, 32342, 42230, 48670, 64370, 80855, 130913, 161710, 199547, 261826, 399094, 501301, 654565, 663011, 997735, 1002602, 1309130, 1326022, 1995470, 2506505, 3315055, 5013010, 6630110, 20553341, 41106682, 102766705, 205533410]

約数ペア:

[(1, 205533410), (2, 102766705), (5, 41106682), (10, 20553341), (31, 6630110), (41, 5013010), (62, 3315055), (82, 2506505), (103, 1995470), (155, 1326022), (157, 1309130), (205, 1002602), (206, 997735), (310, 663011), (314, 654565), (410, 501301), (515, 399094), (785, 261826), (1030, 199547), (1271, 161710), (1570, 130913), (2542, 80855), (3193, 64370), (4223, 48670), (4867, 42230), (6355, 32342), (6386, 32185), (6437, 31930), (8446, 24335), (9734, 21115), (12710, 16171), (12874, 15965)]