20438367075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{947}}^1$

素因数の和:1234

約数の個数: 144

約数和(自身を含む): 42691124736

約数和(自身を除く): 22252757661

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 71, 75, 105, 175, 193, 213, 225, 315, 355, 497, 525, 579, 639, 947, 965, 1065, 1351, 1491, 1575, 1737, 1775, 2485, 2841, 2895, 3195, 4053, 4473, 4735, 4825, 5325, 6629, 6755, 7455, 8523, 8685, 12159, 12425, 13703, 14205, 14475, 15975, 19887, 20265, 22365, 23675, 33145, 33775, 37275, 41109, 42615, 43425, 59661, 60795, 67237, 68515, 71025, 95921, 99435, 101325, 111825, 123327, 165725, 182771, 201711, 205545, 213075, 287763, 298305, 303975, 336185, 342575, 470659, 479605, 497175, 548313, 605133, 616635, 863289, 913855, 1008555, 1027725, 1279397, 1411977, 1438815, 1491525, 1644939, 1680925, 2353295, 2398025, 2741565, 3025665, 3083175, 3838191, 4235931, 4316445, 4569275, 5042775, 6396985, 7059885, 7194075, 8224695, 11514573, 11766475, 12976741, 13707825, 15128325, 19190955, 21179655, 21582225, 31984925, 35299425, 38930223, 41123475, 57572865, 64883705, 90837187, 95954775, 105898275, 116790669, 194651115, 272511561, 287864325, 324418525, 454185935, 583953345, 817534683, 973255575, 1362557805, 2270929675, 2919766725, 4087673415, 6812789025, 20438367075]

約数ペア:

[(1, 20438367075), (3, 6812789025), (5, 4087673415), (7, 2919766725), (9, 2270929675), (15, 1362557805), (21, 973255575), (25, 817534683), (35, 583953345), (45, 454185935), (63, 324418525), (71, 287864325), (75, 272511561), (105, 194651115), (175, 116790669), (193, 105898275), (213, 95954775), (225, 90837187), (315, 64883705), (355, 57572865), (497, 41123475), (525, 38930223), (579, 35299425), (639, 31984925), (947, 21582225), (965, 21179655), (1065, 19190955), (1351, 15128325), (1491, 13707825), (1575, 12976741), (1737, 11766475), (1775, 11514573), (2485, 8224695), (2841, 7194075), (2895, 7059885), (3195, 6396985), (4053, 5042775), (4473, 4569275), (4735, 4316445), (4825, 4235931), (5325, 3838191), (6629, 3083175), (6755, 3025665), (7455, 2741565), (8523, 2398025), (8685, 2353295), (12159, 1680925), (12425, 1644939), (13703, 1491525), (14205, 1438815), (14475, 1411977), (15975, 1279397), (19887, 1027725), (20265, 1008555), (22365, 913855), (23675, 863289), (33145, 616635), (33775, 605133), (37275, 548313), (41109, 497175), (42615, 479605), (43425, 470659), (59661, 342575), (60795, 336185), (67237, 303975), (68515, 298305), (71025, 287763), (95921, 213075), (99435, 205545), (101325, 201711), (111825, 182771), (123327, 165725)]