24641980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 57062880

約数和(自身を除く): 32420900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1109, 1111, 2020, 2218, 2222, 4436, 4444, 5545, 5555, 11090, 11110, 12199, 22180, 22220, 24398, 48796, 60995, 112009, 121990, 224018, 243980, 448036, 560045, 1120090, 1232099, 2240180, 2464198, 4928396, 6160495, 12320990, 24641980]

約数ペア:

[(1, 24641980), (2, 12320990), (4, 6160495), (5, 4928396), (10, 2464198), (11, 2240180), (20, 1232099), (22, 1120090), (44, 560045), (55, 448036), (101, 243980), (110, 224018), (202, 121990), (220, 112009), (404, 60995), (505, 48796), (1010, 24398), (1109, 22220), (1111, 22180), (2020, 12199), (2218, 11110), (2222, 11090), (4436, 5555), (4444, 5545)]