20179740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2089}}^1$

素因数の和:2131

約数の個数: 96

約数和(自身を含む): 67415040

約数和(自身を除く): 47235300

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2089, 2415, 3220, 4178, 4830, 6267, 8356, 9660, 10445, 12534, 14623, 20890, 25068, 29246, 31335, 41780, 43869, 48047, 58492, 62670, 73115, 87738, 96094, 125340, 144141, 146230, 175476, 192188, 219345, 240235, 288282, 292460, 336329, 438690, 480470, 576564, 672658, 720705, 877380, 960940, 1008987, 1345316, 1441410, 1681645, 2017974, 2882820, 3363290, 4035948, 5044935, 6726580, 10089870, 20179740]

約数ペア:

[(1, 20179740), (2, 10089870), (3, 6726580), (4, 5044935), (5, 4035948), (6, 3363290), (7, 2882820), (10, 2017974), (12, 1681645), (14, 1441410), (15, 1345316), (20, 1008987), (21, 960940), (23, 877380), (28, 720705), (30, 672658), (35, 576564), (42, 480470), (46, 438690), (60, 336329), (69, 292460), (70, 288282), (84, 240235), (92, 219345), (105, 192188), (115, 175476), (138, 146230), (140, 144141), (161, 125340), (210, 96094), (230, 87738), (276, 73115), (322, 62670), (345, 58492), (420, 48047), (460, 43869), (483, 41780), (644, 31335), (690, 29246), (805, 25068), (966, 20890), (1380, 14623), (1610, 12534), (1932, 10445), (2089, 9660), (2415, 8356), (3220, 6267), (4178, 4830)]