19804260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:853

約数の個数: 96

約数和(自身を含む): 64495872

約数和(自身を除く): 44691612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 773, 854, 915, 1220, 1281, 1546, 1708, 1830, 2135, 2319, 2562, 3092, 3660, 3865, 4270, 4638, 5124, 5411, 6405, 7730, 8540, 9276, 10822, 11595, 12810, 15460, 16233, 21644, 23190, 25620, 27055, 32466, 46380, 47153, 54110, 64932, 81165, 94306, 108220, 141459, 162330, 188612, 235765, 282918, 324660, 330071, 471530, 565836, 660142, 707295, 943060, 990213, 1320284, 1414590, 1650355, 1980426, 2829180, 3300710, 3960852, 4951065, 6601420, 9902130, 19804260]

約数ペア:

[(1, 19804260), (2, 9902130), (3, 6601420), (4, 4951065), (5, 3960852), (6, 3300710), (7, 2829180), (10, 1980426), (12, 1650355), (14, 1414590), (15, 1320284), (20, 990213), (21, 943060), (28, 707295), (30, 660142), (35, 565836), (42, 471530), (60, 330071), (61, 324660), (70, 282918), (84, 235765), (105, 188612), (122, 162330), (140, 141459), (183, 108220), (210, 94306), (244, 81165), (305, 64932), (366, 54110), (420, 47153), (427, 46380), (610, 32466), (732, 27055), (773, 25620), (854, 23190), (915, 21644), (1220, 16233), (1281, 15460), (1546, 12810), (1708, 11595), (1830, 10822), (2135, 9276), (2319, 8540), (2562, 7730), (3092, 6405), (3660, 5411), (3865, 5124), (4270, 4638)]