19789140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 66189312

約数和(自身を除く): 46400172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 53, 60, 70, 84, 98, 105, 106, 127, 140, 147, 159, 196, 210, 212, 245, 254, 265, 294, 318, 371, 381, 420, 490, 508, 530, 588, 635, 636, 735, 742, 762, 795, 889, 980, 1060, 1113, 1270, 1470, 1484, 1524, 1590, 1778, 1855, 1905, 2226, 2540, 2597, 2667, 2940, 3180, 3556, 3710, 3810, 4445, 4452, 5194, 5334, 5565, 6223, 6731, 7420, 7620, 7791, 8890, 10388, 10668, 11130, 12446, 12985, 13335, 13462, 15582, 17780, 18669, 20193, 22260, 24892, 25970, 26670, 26924, 31115, 31164, 33655, 37338, 38955, 40386, 47117, 51940, 53340, 62230, 67310, 74676, 77910, 80772, 93345, 94234, 100965, 124460, 134620, 141351, 155820, 186690, 188468, 201930, 235585, 282702, 329819, 373380, 403860, 471170, 565404, 659638, 706755, 942340, 989457, 1319276, 1413510, 1649095, 1978914, 2827020, 3298190, 3957828, 4947285, 6596380, 9894570, 19789140]

約数ペア:

[(1, 19789140), (2, 9894570), (3, 6596380), (4, 4947285), (5, 3957828), (6, 3298190), (7, 2827020), (10, 1978914), (12, 1649095), (14, 1413510), (15, 1319276), (20, 989457), (21, 942340), (28, 706755), (30, 659638), (35, 565404), (42, 471170), (49, 403860), (53, 373380), (60, 329819), (70, 282702), (84, 235585), (98, 201930), (105, 188468), (106, 186690), (127, 155820), (140, 141351), (147, 134620), (159, 124460), (196, 100965), (210, 94234), (212, 93345), (245, 80772), (254, 77910), (265, 74676), (294, 67310), (318, 62230), (371, 53340), (381, 51940), (420, 47117), (490, 40386), (508, 38955), (530, 37338), (588, 33655), (635, 31164), (636, 31115), (735, 26924), (742, 26670), (762, 25970), (795, 24892), (889, 22260), (980, 20193), (1060, 18669), (1113, 17780), (1270, 15582), (1470, 13462), (1484, 13335), (1524, 12985), (1590, 12446), (1778, 11130), (1855, 10668), (1905, 10388), (2226, 8890), (2540, 7791), (2597, 7620), (2667, 7420), (2940, 6731), (3180, 6223), (3556, 5565), (3710, 5334), (3810, 5194), (4445, 4452)]