20690850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{271}}^1\times {\mathrm{509}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 51603840

約数和(自身を除く): 30912990

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 271, 509, 542, 813, 1018, 1355, 1527, 1626, 2545, 2710, 3054, 4065, 5090, 6775, 7635, 8130, 12725, 13550, 15270, 20325, 25450, 38175, 40650, 76350, 137939, 275878, 413817, 689695, 827634, 1379390, 2069085, 3448475, 4138170, 6896950, 10345425, 20690850]

約数ペア:

[(1, 20690850), (2, 10345425), (3, 6896950), (5, 4138170), (6, 3448475), (10, 2069085), (15, 1379390), (25, 827634), (30, 689695), (50, 413817), (75, 275878), (150, 137939), (271, 76350), (509, 40650), (542, 38175), (813, 25450), (1018, 20325), (1355, 15270), (1527, 13550), (1626, 12725), (2545, 8130), (2710, 7635), (3054, 6775), (4065, 5090)]