20313740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 44419872

約数和(自身を除く): 24106132

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 97, 148, 185, 194, 283, 370, 388, 485, 566, 740, 970, 1132, 1415, 1940, 2830, 3589, 5660, 7178, 10471, 14356, 17945, 20942, 27451, 35890, 41884, 52355, 54902, 71780, 104710, 109804, 137255, 209420, 274510, 549020, 1015687, 2031374, 4062748, 5078435, 10156870, 20313740]

約数ペア:

[(1, 20313740), (2, 10156870), (4, 5078435), (5, 4062748), (10, 2031374), (20, 1015687), (37, 549020), (74, 274510), (97, 209420), (148, 137255), (185, 109804), (194, 104710), (283, 71780), (370, 54902), (388, 52355), (485, 41884), (566, 35890), (740, 27451), (970, 20942), (1132, 17945), (1415, 14356), (1940, 10471), (2830, 7178), (3589, 5660)]