20282520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{977}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 61261920

約数和(自身を除く): 40979400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173, 346, 519, 692, 865, 977, 1038, 1384, 1730, 1954, 2076, 2595, 2931, 3460, 3908, 4152, 4885, 5190, 5862, 6920, 7816, 9770, 10380, 11724, 14655, 19540, 20760, 23448, 29310, 39080, 58620, 117240, 169021, 338042, 507063, 676084, 845105, 1014126, 1352168, 1690210, 2028252, 2535315, 3380420, 4056504, 5070630, 6760840, 10141260, 20282520]

約数ペア:

[(1, 20282520), (2, 10141260), (3, 6760840), (4, 5070630), (5, 4056504), (6, 3380420), (8, 2535315), (10, 2028252), (12, 1690210), (15, 1352168), (20, 1014126), (24, 845105), (30, 676084), (40, 507063), (60, 338042), (120, 169021), (173, 117240), (346, 58620), (519, 39080), (692, 29310), (865, 23448), (977, 20760), (1038, 19540), (1384, 14655), (1730, 11724), (1954, 10380), (2076, 9770), (2595, 7816), (2931, 6920), (3460, 5862), (3908, 5190), (4152, 4885)]