207510020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 471802968

約数和(自身を除く): 264292948

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 361, 380, 410, 701, 722, 779, 820, 1402, 1444, 1558, 1805, 2804, 3116, 3505, 3610, 3895, 7010, 7220, 7790, 13319, 14020, 14801, 15580, 26638, 28741, 29602, 53276, 57482, 59204, 66595, 74005, 114964, 133190, 143705, 148010, 253061, 266380, 287410, 296020, 506122, 546079, 574820, 1012244, 1092158, 1265305, 2184316, 2530610, 2730395, 5061220, 5460790, 10375501, 10921580, 20751002, 41502004, 51877505, 103755010, 207510020]

約数ペア:

[(1, 207510020), (2, 103755010), (4, 51877505), (5, 41502004), (10, 20751002), (19, 10921580), (20, 10375501), (38, 5460790), (41, 5061220), (76, 2730395), (82, 2530610), (95, 2184316), (164, 1265305), (190, 1092158), (205, 1012244), (361, 574820), (380, 546079), (410, 506122), (701, 296020), (722, 287410), (779, 266380), (820, 253061), (1402, 148010), (1444, 143705), (1558, 133190), (1805, 114964), (2804, 74005), (3116, 66595), (3505, 59204), (3610, 57482), (3895, 53276), (7010, 29602), (7220, 28741), (7790, 26638), (13319, 15580), (14020, 14801)]