204044420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{479}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 460857600

約数和(自身を除く): 256813180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 361, 380, 479, 590, 722, 958, 1121, 1180, 1444, 1805, 1916, 2242, 2395, 3610, 4484, 4790, 5605, 7220, 9101, 9580, 11210, 18202, 21299, 22420, 28261, 36404, 42598, 45505, 56522, 85196, 91010, 106495, 113044, 141305, 172919, 182020, 212990, 282610, 345838, 425980, 536959, 565220, 691676, 864595, 1073918, 1729190, 2147836, 2684795, 3458380, 5369590, 10202221, 10739180, 20404442, 40808884, 51011105, 102022210, 204044420]

約数ペア:

[(1, 204044420), (2, 102022210), (4, 51011105), (5, 40808884), (10, 20404442), (19, 10739180), (20, 10202221), (38, 5369590), (59, 3458380), (76, 2684795), (95, 2147836), (118, 1729190), (190, 1073918), (236, 864595), (295, 691676), (361, 565220), (380, 536959), (479, 425980), (590, 345838), (722, 282610), (958, 212990), (1121, 182020), (1180, 172919), (1444, 141305), (1805, 113044), (1916, 106495), (2242, 91010), (2395, 85196), (3610, 56522), (4484, 45505), (4790, 42598), (5605, 36404), (7220, 28261), (9101, 22420), (9580, 21299), (11210, 18202)]