20372520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 70963200

約数和(自身を除く): 50590680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 79, 84, 105, 120, 140, 158, 168, 210, 237, 280, 307, 316, 395, 420, 474, 553, 614, 632, 790, 840, 921, 948, 1106, 1185, 1228, 1535, 1580, 1659, 1842, 1896, 2149, 2212, 2370, 2456, 2765, 3070, 3160, 3318, 3684, 4298, 4424, 4605, 4740, 5530, 6140, 6447, 6636, 7368, 8295, 8596, 9210, 9480, 10745, 11060, 12280, 12894, 13272, 16590, 17192, 18420, 21490, 22120, 24253, 25788, 32235, 33180, 36840, 42980, 48506, 51576, 64470, 66360, 72759, 85960, 97012, 121265, 128940, 145518, 169771, 194024, 242530, 257880, 291036, 339542, 363795, 485060, 509313, 582072, 679084, 727590, 848855, 970120, 1018626, 1358168, 1455180, 1697710, 2037252, 2546565, 2910360, 3395420, 4074504, 5093130, 6790840, 10186260, 20372520]

約数ペア:

[(1, 20372520), (2, 10186260), (3, 6790840), (4, 5093130), (5, 4074504), (6, 3395420), (7, 2910360), (8, 2546565), (10, 2037252), (12, 1697710), (14, 1455180), (15, 1358168), (20, 1018626), (21, 970120), (24, 848855), (28, 727590), (30, 679084), (35, 582072), (40, 509313), (42, 485060), (56, 363795), (60, 339542), (70, 291036), (79, 257880), (84, 242530), (105, 194024), (120, 169771), (140, 145518), (158, 128940), (168, 121265), (210, 97012), (237, 85960), (280, 72759), (307, 66360), (316, 64470), (395, 51576), (420, 48506), (474, 42980), (553, 36840), (614, 33180), (632, 32235), (790, 25788), (840, 24253), (921, 22120), (948, 21490), (1106, 18420), (1185, 17192), (1228, 16590), (1535, 13272), (1580, 12894), (1659, 12280), (1842, 11060), (1896, 10745), (2149, 9480), (2212, 9210), (2370, 8596), (2456, 8295), (2765, 7368), (3070, 6636), (3160, 6447), (3318, 6140), (3684, 5530), (4298, 4740), (4424, 4605)]