20104380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1831}}^1$

素因数の和:1907

約数の個数: 72

約数和(自身を含む): 62016864

約数和(自身を除く): 41912484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 1831, 2196, 2745, 3660, 3662, 5490, 5493, 7324, 9155, 10980, 10986, 16479, 18310, 21972, 27465, 32958, 36620, 54930, 65916, 82395, 109860, 111691, 164790, 223382, 329580, 335073, 446764, 558455, 670146, 1005219, 1116910, 1340292, 1675365, 2010438, 2233820, 3350730, 4020876, 5026095, 6701460, 10052190, 20104380]

約数ペア:

[(1, 20104380), (2, 10052190), (3, 6701460), (4, 5026095), (5, 4020876), (6, 3350730), (9, 2233820), (10, 2010438), (12, 1675365), (15, 1340292), (18, 1116910), (20, 1005219), (30, 670146), (36, 558455), (45, 446764), (60, 335073), (61, 329580), (90, 223382), (122, 164790), (180, 111691), (183, 109860), (244, 82395), (305, 65916), (366, 54930), (549, 36620), (610, 32958), (732, 27465), (915, 21972), (1098, 18310), (1220, 16479), (1830, 10986), (1831, 10980), (2196, 9155), (2745, 7324), (3660, 5493), (3662, 5490)]