217607390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21739}}^1$

素因数の和:21777

約数の個数: 64

約数和(自身を含む): 525934080

約数和(自身を除く): 308326690

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 5005, 10010, 21739, 43478, 108695, 152173, 217390, 239129, 282607, 304346, 478258, 565214, 760865, 1195645, 1413035, 1521730, 1673903, 1978249, 2391290, 2826070, 3108677, 3347806, 3956498, 6217354, 8369515, 9891245, 15543385, 16739030, 19782490, 21760739, 31086770, 43521478, 108803695, 217607390]

約数ペア:

[(1, 217607390), (2, 108803695), (5, 43521478), (7, 31086770), (10, 21760739), (11, 19782490), (13, 16739030), (14, 15543385), (22, 9891245), (26, 8369515), (35, 6217354), (55, 3956498), (65, 3347806), (70, 3108677), (77, 2826070), (91, 2391290), (110, 1978249), (130, 1673903), (143, 1521730), (154, 1413035), (182, 1195645), (286, 760865), (385, 565214), (455, 478258), (715, 304346), (770, 282607), (910, 239129), (1001, 217390), (1430, 152173), (2002, 108695), (5005, 43478), (10010, 21739)]