20189820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{907}}^1$

素因数の和:979

約数の個数: 96

約数和(自身を含む): 65899008

約数和(自身を除く): 45709188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 53, 60, 70, 84, 105, 106, 140, 159, 210, 212, 265, 318, 371, 420, 530, 636, 742, 795, 907, 1060, 1113, 1484, 1590, 1814, 1855, 2226, 2721, 3180, 3628, 3710, 4452, 4535, 5442, 5565, 6349, 7420, 9070, 10884, 11130, 12698, 13605, 18140, 19047, 22260, 25396, 27210, 31745, 38094, 48071, 54420, 63490, 76188, 95235, 96142, 126980, 144213, 190470, 192284, 240355, 288426, 336497, 380940, 480710, 576852, 672994, 721065, 961420, 1009491, 1345988, 1442130, 1682485, 2018982, 2884260, 3364970, 4037964, 5047455, 6729940, 10094910, 20189820]

約数ペア:

[(1, 20189820), (2, 10094910), (3, 6729940), (4, 5047455), (5, 4037964), (6, 3364970), (7, 2884260), (10, 2018982), (12, 1682485), (14, 1442130), (15, 1345988), (20, 1009491), (21, 961420), (28, 721065), (30, 672994), (35, 576852), (42, 480710), (53, 380940), (60, 336497), (70, 288426), (84, 240355), (105, 192284), (106, 190470), (140, 144213), (159, 126980), (210, 96142), (212, 95235), (265, 76188), (318, 63490), (371, 54420), (420, 48071), (530, 38094), (636, 31745), (742, 27210), (795, 25396), (907, 22260), (1060, 19047), (1113, 18140), (1484, 13605), (1590, 12698), (1814, 11130), (1855, 10884), (2226, 9070), (2721, 7420), (3180, 6349), (3628, 5565), (3710, 5442), (4452, 4535)]