261162790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{1097}}^1$

素因数の和:1309

約数の個数: 64

約数和(自身を含む): 569203200

約数和(自身を除く): 308040410

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 179, 190, 266, 358, 665, 895, 1097, 1253, 1330, 1790, 2194, 2506, 3401, 5485, 6265, 6802, 7679, 10970, 12530, 15358, 17005, 20843, 23807, 34010, 38395, 41686, 47614, 76790, 104215, 119035, 145901, 196363, 208430, 238070, 291802, 392726, 729505, 981815, 1374541, 1459010, 1963630, 2749082, 3730897, 6872705, 7461794, 13745410, 18654485, 26116279, 37308970, 52232558, 130581395, 261162790]

約数ペア:

[(1, 261162790), (2, 130581395), (5, 52232558), (7, 37308970), (10, 26116279), (14, 18654485), (19, 13745410), (35, 7461794), (38, 6872705), (70, 3730897), (95, 2749082), (133, 1963630), (179, 1459010), (190, 1374541), (266, 981815), (358, 729505), (665, 392726), (895, 291802), (1097, 238070), (1253, 208430), (1330, 196363), (1790, 145901), (2194, 119035), (2506, 104215), (3401, 76790), (5485, 47614), (6265, 41686), (6802, 38395), (7679, 34010), (10970, 23807), (12530, 20843), (15358, 17005)]