20695650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 51612768

約数和(自身を除く): 30917118

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 281, 491, 562, 843, 982, 1405, 1473, 1686, 2455, 2810, 2946, 4215, 4910, 7025, 7365, 8430, 12275, 14050, 14730, 21075, 24550, 36825, 42150, 73650, 137971, 275942, 413913, 689855, 827826, 1379710, 2069565, 3449275, 4139130, 6898550, 10347825, 20695650]

約数ペア:

[(1, 20695650), (2, 10347825), (3, 6898550), (5, 4139130), (6, 3449275), (10, 2069565), (15, 1379710), (25, 827826), (30, 689855), (50, 413913), (75, 275942), (150, 137971), (281, 73650), (491, 42150), (562, 36825), (843, 24550), (982, 21075), (1405, 14730), (1473, 14050), (1686, 12275), (2455, 8430), (2810, 7365), (2946, 7025), (4215, 4910)]