20121520920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{55763}}^1$

素因数の和:55905

約数の個数: 128

約数和(自身を含む): 62955325440

約数和(自身を除く): 42833804520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 97, 120, 124, 155, 186, 194, 248, 291, 310, 372, 388, 465, 485, 582, 620, 744, 776, 930, 970, 1164, 1240, 1455, 1860, 1940, 2328, 2910, 3007, 3720, 3880, 5820, 6014, 9021, 11640, 12028, 15035, 18042, 24056, 30070, 36084, 45105, 55763, 60140, 72168, 90210, 111526, 120280, 167289, 180420, 223052, 278815, 334578, 360840, 446104, 557630, 669156, 836445, 1115260, 1338312, 1672890, 1728653, 2230520, 3345780, 3457306, 5185959, 5409011, 6691560, 6914612, 8643265, 10371918, 10818022, 13829224, 16227033, 17286530, 20743836, 21636044, 25929795, 27045055, 32454066, 34573060, 41487672, 43272088, 51859590, 54090110, 64908132, 69146120, 81135165, 103719180, 108180220, 129816264, 162270330, 167679341, 207438360, 216360440, 324540660, 335358682, 503038023, 649081320, 670717364, 838396705, 1006076046, 1341434728, 1676793410, 2012152092, 2515190115, 3353586820, 4024304184, 5030380230, 6707173640, 10060760460, 20121520920]

約数ペア:

[(1, 20121520920), (2, 10060760460), (3, 6707173640), (4, 5030380230), (5, 4024304184), (6, 3353586820), (8, 2515190115), (10, 2012152092), (12, 1676793410), (15, 1341434728), (20, 1006076046), (24, 838396705), (30, 670717364), (31, 649081320), (40, 503038023), (60, 335358682), (62, 324540660), (93, 216360440), (97, 207438360), (120, 167679341), (124, 162270330), (155, 129816264), (186, 108180220), (194, 103719180), (248, 81135165), (291, 69146120), (310, 64908132), (372, 54090110), (388, 51859590), (465, 43272088), (485, 41487672), (582, 34573060), (620, 32454066), (744, 27045055), (776, 25929795), (930, 21636044), (970, 20743836), (1164, 17286530), (1240, 16227033), (1455, 13829224), (1860, 10818022), (1940, 10371918), (2328, 8643265), (2910, 6914612), (3007, 6691560), (3720, 5409011), (3880, 5185959), (5820, 3457306), (6014, 3345780), (9021, 2230520), (11640, 1728653), (12028, 1672890), (15035, 1338312), (18042, 1115260), (24056, 836445), (30070, 669156), (36084, 557630), (45105, 446104), (55763, 360840), (60140, 334578), (72168, 278815), (90210, 223052), (111526, 180420), (120280, 167289)]