20173828455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1789}}^1$

素因数の和:1950

約数の個数: 144

約数和(自身を含む): 40852812000

約数和(自身を除く): 20678983545

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 109, 121, 165, 171, 209, 285, 327, 363, 495, 545, 605, 627, 855, 981, 1045, 1089, 1199, 1635, 1789, 1815, 1881, 2071, 2299, 3135, 3597, 4905, 5367, 5445, 5995, 6213, 6897, 8945, 9405, 10355, 10791, 11495, 13189, 16101, 17985, 18639, 19679, 20691, 22781, 26835, 31065, 33991, 34485, 39567, 53955, 59037, 65945, 68343, 80505, 93195, 98395, 101973, 103455, 113905, 118701, 169955, 177111, 195001, 197835, 205029, 216469, 250591, 295185, 305919, 341715, 373901, 509865, 585003, 593505, 649407, 751773, 885555, 975005, 1025145, 1082345, 1121703, 1252955, 1529595, 1755009, 1869505, 1948221, 2145011, 2255319, 2925015, 3247035, 3365109, 3705019, 3758865, 4112911, 5608515, 6435033, 8775045, 9741105, 10725055, 11115057, 11276595, 12338733, 16825545, 18525095, 19305099, 20564555, 23595121, 32175165, 33345171, 37016199, 40755209, 55575285, 61693665, 70785363, 96525495, 117975605, 122265627, 166725855, 185080995, 203776045, 212356089, 353926815, 366796881, 448307299, 611328135, 1061780445, 1344921897, 1833984405, 2241536495, 4034765691, 6724609485, 20173828455]

約数ペア:

[(1, 20173828455), (3, 6724609485), (5, 4034765691), (9, 2241536495), (11, 1833984405), (15, 1344921897), (19, 1061780445), (33, 611328135), (45, 448307299), (55, 366796881), (57, 353926815), (95, 212356089), (99, 203776045), (109, 185080995), (121, 166725855), (165, 122265627), (171, 117975605), (209, 96525495), (285, 70785363), (327, 61693665), (363, 55575285), (495, 40755209), (545, 37016199), (605, 33345171), (627, 32175165), (855, 23595121), (981, 20564555), (1045, 19305099), (1089, 18525095), (1199, 16825545), (1635, 12338733), (1789, 11276595), (1815, 11115057), (1881, 10725055), (2071, 9741105), (2299, 8775045), (3135, 6435033), (3597, 5608515), (4905, 4112911), (5367, 3758865), (5445, 3705019), (5995, 3365109), (6213, 3247035), (6897, 2925015), (8945, 2255319), (9405, 2145011), (10355, 1948221), (10791, 1869505), (11495, 1755009), (13189, 1529595), (16101, 1252955), (17985, 1121703), (18639, 1082345), (19679, 1025145), (20691, 975005), (22781, 885555), (26835, 751773), (31065, 649407), (33991, 593505), (34485, 585003), (39567, 509865), (53955, 373901), (59037, 341715), (65945, 305919), (68343, 295185), (80505, 250591), (93195, 216469), (98395, 205029), (101973, 197835), (103455, 195001), (113905, 177111), (118701, 169955)]