204520120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{104347}}^1$

素因数の和:104372

約数の個数: 48

約数和(自身を含む): 535305240

約数和(自身を除く): 330785120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 104347, 208694, 417388, 521735, 730429, 834776, 1043470, 1460858, 2086940, 2921716, 3652145, 4173880, 5113003, 5843432, 7304290, 10226006, 14608580, 20452012, 25565015, 29217160, 40904024, 51130030, 102260060, 204520120]

約数ペア:

[(1, 204520120), (2, 102260060), (4, 51130030), (5, 40904024), (7, 29217160), (8, 25565015), (10, 20452012), (14, 14608580), (20, 10226006), (28, 7304290), (35, 5843432), (40, 5113003), (49, 4173880), (56, 3652145), (70, 2921716), (98, 2086940), (140, 1460858), (196, 1043470), (245, 834776), (280, 730429), (392, 521735), (490, 417388), (980, 208694), (1960, 104347)]